发明名称 Electrographic apparatus and hand rest for use therewith
摘要 Electrographic apparatus, that is apparatus for obtaining electrical signals related to the movement of a point, such as a pen or stylus, over a pressure sensitive surface. The apparatus comprises a hand-supporting plate movable relative to the pressure sensitive surface to provide a convenient hand-rest during writing or drawing without the hand touching the pressure sensitive surface.
申请公布号 US4129746(A) 申请公布日期 1978.12.12
申请号 US19770792829 申请日期 1977.05.02
申请人 QUEST AUTOMATION LIMITED 发明人 LAMBDEN, MARTIN R.
分类号 G01B7/004;G06F3/033;G06F3/045;(IPC1-7):G08C21/00 主分类号 G01B7/004
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