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US Patent: 653,364
Pliers
Improvements in Jewelers' Pliers.
Patentee:
Giovanni B. Pittavino - New York, NY

USPTO Classifications:
269/223, 30/182, 81/334, 81/353, 81/6

Tool Categories:
pliers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. A. Stewart
John Buckler
V. M. Vosler

Patent Dates:
Applied: Sep. 13, 1899
Granted: Jul. 10, 1900

Patent Pictures:
Giovanni B. Pittavino patent July 10, 1900
USPTO pdf tiff
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Description:
The adjusting screw in the handle will "lock" the jaws, enabling the pliers to act as a hand vise. The specifications describe this in terms of the pliers in patent no. 427,220.

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