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摘要
申请公布号
US1774238(A)
申请公布日期
1930.08.26
申请号
US19220606444
申请日期
1922.12.12
申请人
REMINGTON RAND INC.
发明人
JR. JAMES H. RAND,
分类号
B42F19/00
主分类号
B42F19/00
代理机构
代理人
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