US Patent: 846,304
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Punch
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Patentee:
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James F. Hardy (exact or similar names) - New York, NY |
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Patent Dates:
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Applied: |
Mar. 15, 1905 |
Granted: |
Mar. 05, 1907 |
Patent Pictures:
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Stan Schulz Martin J. Donnelly Antique Tools
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Description: |
My invention relates to a punch, and more paticularly to a punch for use by dentists in punching holes in sheets of rubber, known as "rubber dam". |
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