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US Patent: 445,356
Wrench
Patentee:
John B. Perault (exact or similar names) - Belmont, MA

USPTO Classifications:
81/118

Tool Categories:
wrenches : brace wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. R. Brittain
U. F. Eager
T. D. Hilt
Charles Glader
Patent Dates:
Applied: Nov. 10, 1890
Granted: Jan. 27, 1891

Patent Pictures:
John B. Perault patent January 27, 1891
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Description:
Adjustable socket for brace. Adjustment by bolt with wing nut. Leaf spring to hold jaws open. Jaw faces angled to grip corners.

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