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| Patents Granted on 1965-05-04 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,181,252 | May 04, 1965 | H. Goldschmidt, A.B. Sanford | Teaching device (tutor toy) | ||
| 3,181,283 | May 04, 1965 | P.B. Tuttle | Means for cutting chip breaker grooves | ||
| 3,181,408 | May 04, 1965 | J.A. Richards, Sr. | Reciprocating tool actuated by toggle joint means | tool and die maker | |
| 3,181,635 | May 04, 1965 | J.D. Hale | Portable Weighing Scale | scales and balances | |