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http://www.google.ca/patents/USD313027?utm_source=gb-gplus-share
Patent USD313027 - Joystick handle for electrical-hydraulic control systems
Joystick handle for electrical-hydraulic control systems
Mats A. Persson et al
Overview
Abstract
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Description
Claims
Patent number
: D313027
Filing date
: 30 Sep 1987
Issue date
: 18 Dec 1990
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