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| Patents for John Watson | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 13,670 | Oct. 09, 1855 | G.W. Worden | Gauge attachment to sawing-machines | |
 | 243,093 | Jun. 21, 1881 | J. Watson | Bit-stock | |
 | 288,748 | Nov. 20, 1883 | J. Watson | Bit-brace | |
| 309,902 | Dec. 30, 1884 | J. Watson | Bit-stock | ||
 | 320,357 | Jun. 16, 1885 | J. Huber | Wrench | |