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经营范围
发明名称
RECORD CARD MACHINE
摘要
申请公布号
US3481195(A)
申请公布日期
1969.12.02
申请号
USD3481195
申请日期
1965.06.21
申请人
INTERN. BUSINESS MACHINES CORP.
发明人
THOMAS A. HENDRICKSON;WILLIAM L. STAHL
分类号
G06F7/02;G06K5/00;(IPC1-7):G01B5/16
主分类号
G06F7/02
代理机构
代理人
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