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摘要
申请公布号
US1866216(A)
申请公布日期
1932.07.05
申请号
US19310583540
申请日期
1931.12.28
申请人
ISABEL G. LIPPSTADT
发明人
LIPPSTADT SIGMUND
分类号
A44B15/00
主分类号
A44B15/00
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