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| Patents for Joseph Angstadt | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 266,156 | Oct. 17, 1882 | L. Houston | Mortising-machine | |
 | 373,960 | Nov. 29, 1887 | H.F. Billmeyer | Trimming-machine | |
 | 529,113 | Nov. 13, 1894 | J. Ettinger | Rotary cutter | |
 | 529,114 | Nov. 13, 1894 | J. Ettinger | Rotary cutter | |
 | 529,115 | Nov. 13, 1894 | J. Ettinger | Rotary cutter | |
 | RE11,616 | Jun. 29, 1897 | S.J. Shimer | Cutter-head | |
 | RE11,617 | Jun. 29, 1897 | S.J. Shimer | Cutter-head | |
 | 705,226 | Jul. 22, 1902 | J. Ettinger | Grinding-machine | |