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| All Patents in class 188/353 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 2,573,196 | Oct. 30, 1951 | K.A. Harmon | Brake-holder control mechanism | ||
| 2,577,680 | Dec. 04, 1951 | K.A. Harmon, G.A. Guernsey | Control mechanism for the brake holders of automotive vehicles | ||
| 2,583,485 | Jan. 22, 1952 | K.A. Harmon, G.A. Guernsey | Control mechanism for brake holders | ||
 | 2,594,155 | Apr. 22, 1952 | G.A. Guernsey, K.A. Harmon | Brake-holder control mechanism | |
 | 2,637,416 | May 05, 1953 | G.A. Guernsey, A.H. Green | Control mechanism for brake holders | |