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发明名称
Magnetically-operated index
摘要
申请公布号
US2794282(A)
申请公布日期
1957.06.04
申请号
US19550493882
申请日期
1955.03.14
申请人
CORY CORPORATION
发明人
SHERMAN WILLIAM S.;KRAUSE RICHARD S.
分类号
B42F17/34
主分类号
B42F17/34
代理机构
代理人
主权项
地址
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