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发明名称
OPTICAL KEYBOARD WITH COMMON LIGHT TRANSMISSION MEMBERS
摘要
申请公布号
EP0104168(B1)
申请公布日期
1987.08.19
申请号
EP19820901337
申请日期
1982.03.29
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
PATERSON, ROBERT LEROY;SUBLETTE, JERRY MAC
分类号
B41J5/12;B41J5/10;G06F3/02;H01H13/00;H01H35/00;H03K17/969;(IPC1-7):B41J5/10
主分类号
B41J5/12
代理机构
代理人
主权项
地址
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