US Patent: 1,424,069
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| Wrench
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Patentee:
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| Fred W. Blackmar (exact or similar names) - Providence, RI |
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Patent Dates:
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| Applied: |
Apr. 22, 1921 |
| Granted: |
Jul. 25, 1922 |
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Patent Pictures:
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Fred W. Blackmar Pat. July 25, 1922 |
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Stan Schulz
BOXOCKET / X Series (Collectingsnapon.com)
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Description: |
| The patent describes a 12-point socket attached to a handle that extends at a 45 degree angle from the plane of the socket. Catalog listings for Blue-Point Boxocket (r) wrenches and contemporary 12-point sockets produced by Snap-On (r) tools cite this patent.
Alloy Artifacts notes J. H. Williams also licensed the patent for early 1930s "DUOHEX" double box end wrenches. |
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