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| Patents Granted on 1927-10-04 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,644,057 | Oct. 04, 1927 | L.R. Heim | Grinding Machine | grinding machines | |
| 1,644,079 | Oct. 04, 1927 | W.J. O'Neill | Ratchet Wrench | ratchet wrenches | |
| 1,644,326 | Oct. 04, 1927 | J.M. Crowe | Portable motor-driven saw | handheld circular saws | |
| 1,644,352 | Oct. 04, 1927 | E.S. Perrin | Combination tool | hammers | |
| 1,644,432 | Oct. 04, 1927 | H.W. Howland | Combination portable electric saw and drill | handheld circular saws | |
| 1,644,619 | Oct. 04, 1927 | S.M. Tepper | Saw | ||