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Patents for Allen Wrench and Tool Co. | |||||
Number | Date | Patentee | Title | Type | |
1,000,878 | Aug. 15, 1911 | F.R. Allen | Wrench | ratchet wrenches | |
1,261,092 | Apr. 02, 1918 | F.R. Allen | Wrench | ratchet wrenches |