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| Patents for Mays & Bliss | |||||
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| Number | Date | Patentee | Title | Type | |
| 73,823 | Jan. 28, 1868 | J. Mays, E.W. Bliss | Improved die-press | stamping presses | |
| 87,692 | Mar. 09, 1869 | J. Mays, E.W. Bliss | Improvement in sheet-metal-seaming machine | can making machines | |
| 91,248 | Jun. 15, 1869 | J. Mays, E.W. Bliss | Improvement in machine for manufacturing metal cans | can making machines | |
| 107,363 | Sep. 13, 1870 | A. Hamlin | Improved trip motion for presses, &c. | punch presses | |
| 110,455 | Dec. 27, 1870 | A. Hamlin | Improved power-press | stamping presses | |