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| Patents Granted on 1976-05-11 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,955,267 | May 11, 1976 | D.E. deCaussin | Attachment for Automating Milling Machines | tool changers and storage mechanisms | |
| 3,955,396 | May 11, 1976 | L.F. Carrieri | Press overload protection system | hydraulic metalworking presses | |
| 3,955,450 | May 11, 1976 | J.P. Evans | Adjustable Wrench for Torqueing and Ratcheting A Symmetrical Polygon Member | ratchet wrenches | |
| 3,955,451 | May 11, 1976 | W.F. Lohness | Hand-Held Spin-Type Driver Tool | ||