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US Patent: 5,394,773
Composite Hand Tool
Patentees:
Gregory A. Zurbuchen (exact or similar names) - Kenosha, WI
Paul M. Machmeier (exact or similar names) - Racine, WI

USPTO Classifications:
428/114, 76/114, 76/119

Tool Categories:
wrenches : nut wrenches

Assignees:
Snap-On, Inc. - Kenosha, WI

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Nov. 17, 1993
Granted: Mar. 07, 1995

Patent Pictures:
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Snap-On Tools Company History
Description:
Emrich & Dithmar - patent attorneys

Abstract

A totally non-metallic wrench formed entirely of fiber-reinforced plastic material includes a core of random discontinuous glass-fiber-reinforced plastic material and a band of unidirectional continuous glass-fiber-reinforced plastic material extending around the periphery of the core which are subjected to compression molding to form a composite wrench structure.

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