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发明名称
KEYBOARD BUTTON MANUFACTURE
摘要
申请公布号
GB1521435(A)
申请公布日期
1978.08.16
申请号
GB19770007823
申请日期
1977.02.24
申请人
IBM UNITED KINGDOM LTD
发明人
分类号
B41F17/00;B41F17/34;B41J5/12;G03F7/00;G03F7/26;G06F3/02;H04L13/16;(IPC1-7):B41J5/12
主分类号
B41F17/00
代理机构
代理人
主权项
地址
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