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Patents for Bertsch & Co. | |||||
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Number | Date | Patentee | Title | Type | |
430,264 | Jun. 17, 1890 | C.A. Bertsch | Punching and shearing machine | metal punching machines | |
921,068 | May 11, 1909 | L.H. Bertsch, H. Schelhammer, C.A. Bertsch | Punching or Shearing Machine | metal punching machines |