Manufacturers Index - William Powell Co.
William Powell Co.
Cincinnati, OH, U.S.A.
Company Website: https://www.powellvalves.com/about-us.html
Manufacturer Class:
Steam and Gas Engines
This page contains information on patents issued to this manufacturer.
Submitting Patent Information
If you find a patent number or patent date by this manufacturer that is not on this
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Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
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DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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159,962
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Feb. 16, 1875
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Lubricator for Steam Engines
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James Powell |
Cincinnati, OH |
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189,651
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Apr. 17, 1877
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Lubricators for Steam Engines
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James Powell |
Cincinnati, OH |
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326,517
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Sep. 15, 1885
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Lubricator
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James Powell |
Cincinnati, Hamilton County, OH |
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326,518
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Sep. 15, 1885
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Lubricator
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James Powell |
Cincinnati, Hamilton County, OH |
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326,519
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Sep. 15, 1885
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Lubricator
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James Powell |
Cincinnati, Hamilton County, OH |
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326,521
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Sep. 15, 1885
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Lubricator
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James Powell |
Cincinnati, Hamilton County, OH |
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326,520
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Sep. 15, 1885
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Lubricator
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James Powell |
Cincinnati, OH |
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332,623
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Dec. 15, 1885
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Lubricator
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James Powell |
Cincinnati, OH |
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335,146
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Feb. 02, 1886
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Lubricator
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James Powell |
Cincinnati, OH |
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RE10,728
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May. 18, 1886
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Lubricator
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James Powell |
Cincinnati, OH |
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372,764
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Nov. 08, 1887
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Lubricator
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James W. Powell |
Cincinnati, OH |
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379,243
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Mar. 13, 1888
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Lubricator
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James Powell |
Cincinnati, OH |
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408,927
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Aug. 13, 1889
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Lubricator
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James Powell |
Cincinnati, OH |
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463,320
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Nov. 17, 1891
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Lubricator
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James Powell |
Avondale, Hamillton County, OH |
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604,265
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May. 17, 1898
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Lubricator
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James Powell |
Avondale, Hamilton County, OH |
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