| Patents for John S. Birch |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 88,836 | Apr. 13, 1869 | J.S. Birch | Improvement in Self-Adjusting Watch-Keys | self-adjust wrenches |
| 102,753 | May 10, 1870 | J.S. Birch | Improvement in Adjustable Watch-Keys | |
| 203,581 | May 14, 1878 | J.S. Birch | Wrench | quick adjust wrenches |
| 208,059 | Sep. 17, 1878 | J.S. Birch | Wrench | quick adjust wrenches |
| 228,860 | Jun. 15, 1880 | J.S. Birch | Holding-Tool | self-adjust wrenches |
| RE9,310 | Jul. 20, 1880 | J.S. Birch | Improvement in an Adjustable Holding Device and Watch-Key | self-adjust wrenches |
| 282,605 | Aug. 07, 1883 | J.S. Birch | Watch Key and Holding Tool | socket wrenches |
| 282,606 | Aug. 07, 1883 | J.S. Birch | Watch Key | self-adjust wrenches |
| GB-188,303,841 | Aug. 07, 1883 | J.S. Birch | Pincers; Vices | self-adjust wrenches |
