US Patent: 1,109,121
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Drill-chuck
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Patentee:
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George W. Emrick (exact or similar names) - Brooklyn, NY |
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Patent Dates:
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Applied: |
Jun. 30, 1913 |
Granted: |
Sep. 01, 1914 |
USPTO (New site tip) Google Patents
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Jeff Joslin Vintage Machinery entry for ETTCO Tool Co., Inc.
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Description: |
This is the first of the "Ettco" quick-release drill chucks. Emrick made numerous improvements over the years. The maker, Eastern Tube & Tool Co., was renamed to Ettco Tool Co., Inc. |
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