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US Patent: 957,560
Pliers or Pipe-Tongs
Patentee:
Gardner L. Holt (exact or similar names) - Hartford, CT

USPTO Classifications:
81/412

Tool Categories:
pliers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Henry T. Holt
W. D. Morgan

Patent Dates:
Applied: Feb. 23, 1909
Granted: May 10, 1910

Patent Pictures:
Gardner L. Holt patent May 10, 1910
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Description:
The pivot is an oblong stud as in normal slip-joint pliers. One handle is slid through a center slot in the other handle and later reinforced on the side. This is an effort to accomplish a "slip-joint box-joint" pliers.

Compare F.C. Billings' May 16, 1916 patent 1,183,525 which accomplished that aim through a manufacturing process.

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