If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
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
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
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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421,866
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Feb. 18, 1890
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Feed mechanism for lathes
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Edward A. Muller |
Cincinnati, OH |
In the year this patent was issued, the Muller Machine Tool Co. was acquired by the Bradford Mill Co. In 1890 that firm sold off their flour mill machinery business and reorganized as the Bradford Machine Tool Co. |
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971,243
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Sep. 27, 1910
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Relieving Attachment for Lathes
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Edward W. Blum |
Cincinnati, Hamilton County, OH |
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Relieving Attachment for Lathes
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William T. S. Johnson |
Cincinnati, Hamilton County, OH |
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Relieving Attachment for Lathes
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Frederick Kropf |
Cincinnati, Hamilton County, OH |
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1,143,592
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Jun. 15, 1915
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Lathe
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Edward W. Blum |
Cincinnati, OH |
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1,796,352
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Mar. 17, 1931
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Automatic Tapping Head
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Sydney C. Watson |
Chicago, Cook County, IL |
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