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US Patent: 442,155
Insulating Covering For Pincher Handles
Patentee:
George F. Virtue - Boston, MA

USPTO Classifications:
16/431, 16/DIG.12, 30/341, 81/427.5

Tool Categories:
pliers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. L. Rawson
N. F. Hayes
W. H. Knight
E. M. Bentley

Patent Dates:
Applied: Jul. 31, 1890
Granted: Dec. 09, 1890

Patent Pictures:
George F. Virtue patent December 9, 1890
USPTO pdf tiff
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Description:
The insulating covering is pre-formed to match the dimensions of the handles, and consists of rubber or similar non-conducting materials with an elastic section so it can slip onto the handles. This was intended for tools used by linemen, electricians, etc.

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