Title: |
1859 Ad-Junius Judson, Judson's Patent Graduating Governor-Valve |
Source: |
New York State Business Directory, 1859, pg. 100 |
Insert Date: |
5/3/2025 7:45:18 PM |
US Patent: 7,755
https://www.datamp.org/patents/displayPatent.php?number=7755&typeCode=0 |
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1859 Junius Judson, Judson's Patent Graduating Governor-Valve
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