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| Patents Granted on 1938-10-04 | |||||
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| Number | Date | Patentee | Title | Type | |
| D111,564 | Oct. 04, 1938 | E. Cullen | Combination Kitchen Tool | can and jar openers | |
| 2,131,871 | Oct. 04, 1938 | B.E. Folke | Injector Overflow Mechanism | water injectors | |
| 2,131,970 | Oct. 04, 1938 | F. Ritz | Piston Ring Construction | piston rings | |
| 2,132,136 | Oct. 04, 1938 | W.C. Tucker | Holding or stripping mechanism for shearing machines | metal shearing machines | |