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US Patent: 591,720
Combination-Tool
Patentee:
Charles J. Armstrong - Austin, TX

USPTO Classifications:
7/131, 7/142, 81/186, 81/426, 81/426.5

Tool Categories:
pliers
combination tools
wrenches

Assignees:
Charles J. Armstrong - Austin, TX
Charles Wolf - Austin, TX

Manufacturer:
Not known to have been produced

Witnesses:
Edwin G. McKee
H. F. Riley
J. H. Daniel
J. E. Shipman

Patent Dates:
Applied: Mar. 25, 1897
Granted: Oct. 12, 1897

Patent Pictures:
Charles J. Armstrong patent October 12, 1897
USPTO pdf tiff
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Description:
The combination is hammer, staple puller, tack puller, screwdriver, and jaws shaped to provide multiple gripping sizes for pipe, square nuts, and flat pliers jaws.

The patented feature is the arrangement of flat faces and notches to grip multiple sizes of square nuts.

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