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发明名称
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摘要
申请公布号
US2047331(A)
申请公布日期
1936.07.14
申请号
US19340739134
申请日期
1934.08.09
申请人
POLLAK JAMES I
发明人
POLLAK JAMES I.
分类号
A45C11/32
主分类号
A45C11/32
代理机构
代理人
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