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| Patents for John Mays | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 19,145 | Jan. 19, 1858 | J. Mays | Sawing machine | |
 | 73,823 | Jan. 28, 1868 | J. Mays, E.W. Bliss | Improved die-press | |
 | 87,692 | Mar. 09, 1869 | J. Mays, E.W. Bliss | Improvement in sheet-metal-seaming machine | |
 | 91,248 | Jun. 15, 1869 | J. Mays, E.W. Bliss | Improvement in machine for manufacturing metal cans | |