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#845890
Patent Information
Electric Driven Step By Step Machine
Arthur F. Poole
March 5, 1907
Patent #845890
Patent Number: | 845890 |
Description: | Electric Driven Step By Step Machine |
Inventor(s): | Arthur F. Poole |
Patent Date: | Mar 5, 1907 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |