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All Patents in class 188/382 | |||||
Number | Date | Patentee | Title | Type | |
526,007 | Sep. 11, 1894 | H. Bolthoff | Hoisting-drum | industrial elevators and lifts | |
1,962,715 | Jun. 12, 1934 | F.A. Heilman | Vibrating riveter control | riveting machines | |
2,145,255 | Jan. 31, 1939 | A.G. Ericson, B.R. Granberg | Brake mechanism |