US Patent: 1,877,466
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| Wrench Set Unit
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Patentee:
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| Edward C. Koster (exact or similar names) - Shaker Heights, OH |
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Patent Dates:
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| Applied: |
Jun. 29, 1928 |
| Granted: |
Sep. 13, 1932 |
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Patent Pictures:
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Edward C. Koster patent Sept. 13, 1932 |
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Stan Schulz
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Description: |
| Hinged stamped steel holder with a sliding latch; it appears to be an improvement to Frank Vlchek's wrench set holder (patent no. 1,808,190) which also was produced by the Vlchek Tool Co.
Known examples "branded" for Vlchek's CHROME-MOLY and FITZALL parabolic headed double end wrenches, with "Patent Appl'd For." The holder appears in 1930 advertisements.
Smith & Freeman - patent attorneys
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