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| Patents Granted on 1981-11-24 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,301,600 | Nov. 24, 1981 | P.W. Charnley | Locating mechanism | miter squares | |
| 4,302,518 | Nov. 24, 1981 | K. Mizuchima, J.B. Goodenough | Electrochemical cell with new fast iron conductors | electric batteries | |
| 4,302,724 | Nov. 24, 1981 | N.C. Neumann, D.D. Grover | Pickup Probe for Engine Timing | ||