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| Patents for TRIG-O-MATIC TOOL CORP. | |||||
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| Number | Date | Patentee | Title | Type | |
| D164,505 | Sep. 11, 1951 | J.V. Larson | Self-Adjusting Wrench Or Similar Article | pipe wrenches | |
| 2,645,145 | Jul. 14, 1953 | J.V. Larson | Adjustable Self-Closing Pipe Wrench and the Like | pipe wrenches | |