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| All Patents in class 86/49 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,931,452 | Oct. 17, 1933 | L.G. Wheeler | Hydraulic machine tool feed | multiple spindle drill presses | |
| 2,000,553 | May 07, 1935 | C.R. Alden | Machine tool | horizontal boring mills | |
| 2,042,379 | May 26, 1936 | P.R. Guirl, J.S. Barnes | Metal Working Apparatus | metalworking machine mechanisms | |
| 2,077,109 | Apr. 13, 1937 | A. Jasmin | Tool Holder | lathe tool holders and tool posts | |