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US Patent: 2,689,131
Tool with shank and removable blade
Screwdriver with removable blade
Patentee:
Dwight E. Priest (exact or similar names) - Southboro, MA

USPTO Classifications:
144/241, 279/101, 403/342, 408/144, 408/179, 408/199, 408/211, 408/223, 408/224, 408/226, 408/713, D15/140

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
Parker Mfg. Co. - Worcester, MA

Manufacturer:
Parker Mfg. Co. - Worcester, MA

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 28, 1952
Granted: Sep. 14, 1954

Patent Pictures: [ 1 | 2 | 3 ]
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Description:
Screwdriver with removable/replaceable blades.

Example know marked Craftsman and with Patent Date.

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