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发明名称
Expanding mandrel for recording belt
摘要
申请公布号
US2800332(A)
申请公布日期
1957.07.23
申请号
US19540424720
申请日期
1954.04.21
申请人
CHARLES P. PEIRCE
发明人
STEINBACH EMIL C.
分类号
G11B25/02;G11B25/04
主分类号
G11B25/02
代理机构
代理人
主权项
地址
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