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| Patents for Bay State Tool Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 666,202 | Jan. 15, 1901 | P. Lord | Ratchet Wrench | |
 | 761,798 | Jun. 07, 1904 | F.E. Walden | Wrench or the Like | |
 | 763,225 | Jun. 21, 1904 | F.E. Walden | Punch or the Like | |
 | GB-190,409,535 | Aug. 18, 1904 | F.E. Walden | Spanners and Wrenches; Vices | |
| 780,586 | Jan. 24, 1905 | C.H. Thurston | Wire Fabric | ||
 | 823,748 | Jun. 19, 1906 | F.E. Walden | Clamp | |
 | 841,831 | Jan. 22, 1907 | F.E. Walden | Wrench | |