US Patent: 115,582 - Improvement in Screwdrivers


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US Patent: 115,582

Improvement in Screwdrivers

Patentee:

Jonas P. Curtiss (exact or similar names) - New Britain, CT

USPTO Classifications:

279/105

Tool Categories:

screwdrivers : screwdriver blades

Assignees:

None

Manufacturer:

The Stanley Rule & Level Co. - New Britain, CT

Witnesses:

James Shepard

S. W. Valentine

Patent Dates:
Granted:	Jun. 06, 1871

Patent Pictures:

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Description:

Blade is made with a notch on its tang and the blade secured to the handle by pouring molten lead or other suitable metal into a transverse hole in the handle.

Known examples are marked Stanley R & L Co. with the patent date.