US Patent: 3,454,143
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Power-operated tool
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Patentees:
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Gerhardt A. Dobslaw (exact or similar names) - Fayetteville, NY |
Warren A. Berube (exact or similar names) - Camillus, NY |
Harry L. Beam (exact or similar names) - Jamesville, NY |
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Patent Dates:
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Applied: |
Feb. 09, 1967 |
Granted: |
Jul. 08, 1969 |
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Jeff Joslin Vintage Machinery entry for Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.
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Description: |
The invention is a double-clutch mechanism that provides selectable drill and driver functions. |
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