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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114,509
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May. 02, 1871
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Improvement in meat-saws
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Adam Sowden |
Cincinnati, OH |
The inventors were partners in saw makers Hogan & Sowden. Hogan was bought out by J. W. Baldridge & Co. |
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Improvement in meat-saws
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Patrick J. Hogan |
Cincinnati, OH |
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151,592
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Jun. 02, 1874
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Improvement in saw-gummers
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John Farrow |
Cincinnati, OH |
According to an article in the 1883 book, "The Industries of Cincinnati" on J. W. Baldridge & Co., "They manufacture the celebrated P. J. Hogan gummer, that took the first premium at the Cincinnati Industrial Exposition. This gummer is also simple in construction, easily adjusted, and very durable. Mr. Hogan, the inventor of this valuable device, is now a member of the firm of J. W. Baldridge & Co., and is one of the oldest saw-makers in the West." |
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Improvement in saw-gummers
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Adam Sowden |
Cincinnati, OH |
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Improvement in saw-gummers
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Patrick J. Hogan |
Cincinnati, OH |
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237,977
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Feb. 22, 1881
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Saw-swage
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Patrick J. Hogan |
Cincinnati, OH |
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