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| Patents for Mabel C. Putnam | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,134,765 | Nov. 01, 1938 | M.C. Putnam | Clamp Nail or Fastener | nails | |
| 2,151,716 | Mar. 28, 1939 | M.C. Putnam | Wood Joint Fastener | nails | |
| 2,170,462 | Aug. 22, 1939 | M.C. Putnam | Clamp Nail and Process of Making Same | nails | |