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| Patents Granted on 1977-09-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-1,017,585 | Sep. 20, 1977 | J.W. Schroeter | Hub-to-shaft connection | ||
| 4,049,887 | Sep. 20, 1977 | M.S. Whittingham | Electrochemical cells with cathode-active materials of layered compounds | electric batteries | |