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| Patents for Clement Mfg. Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 401,181 | Apr. 09, 1889 | W.W. Lee | Improvements in Hollow Handles | cutlery | |
| 402,947 | May 07, 1889 | W.W. Lee | Art of Welding | ||
| 412,277 | Oct. 08, 1889 | W.W. Lee | Hollow Handle For Implements | screwdriver handles | |