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摘要
申请公布号
US2901848(A)
申请公布日期
1959.09.01
申请号
US19570674727
申请日期
1957.07.29
申请人
GRIMES ROLAND S
发明人
GRIMES ROLAND S.
分类号
B42D5/04
主分类号
B42D5/04
代理机构
代理人
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