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Patents for James J. Hartley | |||||
Number | Date | Patentee | Title | Type | |
781,947 | Feb. 07, 1905 | J.M. Stryhal, J.J. Hartley | Center Punch | punches | |
783,749 | Feb. 28, 1905 | J.J. Hartley | Center Punch | punches |