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发明名称
Door
摘要
申请公布号
US1838731(A)
申请公布日期
1931.12.29
申请号
US19240683881
申请日期
1924.01.02
申请人
THE YOUNGSTOWN STEEL DOOR COMPANY
发明人
BARROWS ALLAN S.
分类号
B61D19/00
主分类号
B61D19/00
代理机构
代理人
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地址
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