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US Patent: 3,752,202
Hand Fastener Driving Tool
Patentee:
Harry F. Condon (exact or similar names) - Hillsdale, MI

USPTO Classifications:
74/551.9, 81/177.1, 81/177.2, 81/177.85, 81/436

Tool Categories:
screwdrivers : screwdriver handles

Assignees:
Vaco Products Co. - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Feb. 22, 1972
Granted: Aug. 14, 1973

Patent Pictures:
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Report data errors or omissions to steward Stan Schulz
Description:
Max Dressler, Marshall W. Sutker, et al. - patent attorneys

Abstract

A hand driving tool, such as a screwdriver, comprising a torque magnifying handle and a headed bit. The handle defines a longitudinal bore to recieve the head of the headed bit. The bore is specially configured to minimize mechanical binding forces and to eliminate suctional resistance to bit removal without requiring the perforation of the head end of the handle.

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