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| Patents for Houdallie Industries, Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,934,985 | May 03, 1960 | J.W. Westphall, P.J. Mutolo | Predetermined Torque Release Wrench | torque wrenches | |
| 3,018,677 | Jan. 30, 1962 | E.G. Boehm, P.J. Mutolo | Cartidge-Type Spring-Bias Means for a Predetermined Torque Release Wrench | torque wrenches | |