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US Patent: 198,777
File Handle
Patentee:
William T. Nicholson (exact or similar names) - Providence, RI

USPTO Classifications:
279/43.8, 81/177.1

Tool Categories:
industrial tools : tool handles
metalworking tools : files
industrial tools : files

Assignees:
Nicholson File Co. - Providence, RI

Manufacturer:
Nicholson File Co. - Providence, RI

Witnesses:
I. Knight
Thomas F. Cosgrove
John D. Thurston

Patent Dates:
Applied: Dec. 06, 1877
Granted: Jan. 01, 1878

Patent Pictures: [ 1 | 2 ]
William T. Nicholson patent January 1, 1878
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"Vintage Machinery" entry for W. T. Nicholson
Description:
Handle with tapered socket, three or four radial slots, and "elastic compress" to hold file tangs, or double-taper square or triangular files -- the corners of the files or tangs entering the slots.

One known example (found in spring 2018) has lost the "elastic compress" and shows three radial slots.

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