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| All Patents in class 277/423 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,723,014 | Aug. 06, 1929 | T.W. Dahllof | Liquid distributor and bearing | ||
| 1,895,288 | Jan. 24, 1933 | E.P. Larsh | Bearing mounting | motor armatures | |
| 1,910,061 | May 23, 1933 | G.H. Schatz | Antifriction bearing | industrial machine bearings | |
| 1,967,316 | Jul. 24, 1934 | D.A. Meeker | Pump | ||
| 2,448,195 | Aug. 31, 1948 | C.F. Schnuck | Cane Mill | sugar cane apparatus | |