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| Patents Granted on 1977-12-13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,062,120 | Dec. 13, 1977 | B.R. Robinson, E.G. Weber, J.M. Lacagnina | Digital Electronic Micrometer | micrometers | |
| 4,062,255 | Dec. 13, 1977 | G.O. Pangburn, J.J. Perotti | Center Turning Tool | lathe tools | |
| 4,062,412 | Dec. 13, 1977 | W.A. McIlvanie | Flexible shaft drilling system | ||