US Patent: 1,080,560
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| Universal Tool Holder
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Patentee:
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| Peter Erik Johanson (exact or similar names) - Warren, PA |
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Patent Dates:
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| Applied: |
Mar. 11, 1912 |
| Granted: |
Dec. 09, 1913 |
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Patent Pictures:
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1 | 2
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Russ Allen.
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Description: |
| Tool shanks are held by a friction fit and flat end mating with corresponding socket in theh handle. The keyhole opening on handle allows a "releasing rod" to be inserted to remove the tool shank if it becomes stuck.
Known items marked: HULTBERG J.D. HANSEN TOOL CO./WARREN, PA/PAT. DEC 9, 1913 |
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