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| Patents for J. W. Clark | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 65,347 | Jun. 04, 1867 | J.W. Clark | Improvement in guards for circular saws | |
 | 86,605 | Feb. 02, 1869 | I.P. Tice | Improvement in molding-machines | |