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摘要
申请公布号
US3241863(A)
申请公布日期
1966.03.22
申请号
US19620233181
申请日期
1962.10.19
申请人
PADDACK GEORGE M
发明人
PADDACK GEORGE M.
分类号
B42C17/00
主分类号
B42C17/00
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