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| Patents for Joseph N. Lapointe | |||||
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| Number | Date | Patentee | Title | Type | |
| 371,847 | Oct. 18, 1887 | J.N. Lapointe | Machine for polishing pinion-leaves | gear making machines | |
| 685,772 | Nov. 05, 1901 | J.N. Lapointe | Key-seat cutter | key seating machines | |
| 704,348 | Jul. 08, 1902 | J.N. Lapointe | Grinding-machine | drill sharpening machines | |
| 716,438 | Dec. 23, 1902 | J.N. Lapointe | Reamer | reamers | |
| 716,439 | Dec. 23, 1902 | J.N. Lapointe | Reamer | reamers | |
| 876,277 | Jan. 07, 1908 | J.N. Lapointe | Key-seat-broaching machine | key seating machines | |