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摘要
申请公布号
US1952298(A)
申请公布日期
1934.03.27
申请号
US19320592154
申请日期
1932.02.10
申请人
ERNA THIEME
发明人
THIEME ERNA
分类号
B42F17/18
主分类号
B42F17/18
代理机构
代理人
主权项
地址
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