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US Patent: 225,485
Parallel Pliers
Patentee:
Erastus N. Parker (exact or similar names) - Springfield, MA

USPTO Classifications:
30/185, 81/354, 81/360

Tool Categories:
pliers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. S. Parkhurst
Wm. H. Chapin

Patent Dates:
Applied: Feb. 02, 1880
Granted: Mar. 16, 1880

Patent Pictures:
Erastus N. Parker patent March 16, 1880
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Description:
The jaws are moved by gear teeth , and the handles are geared to each other to keep them moving equally, and thereby having the jaws move equally from a common center. The jaws and handles are held between side plates.

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