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发明名称
Fire door
摘要
申请公布号
US1968719(A)
申请公布日期
1934.07.31
申请号
US19300442273
申请日期
1930.04.07
申请人
MAJESTIC ROLLING DOOR COMPANY
发明人
SMURR SAMUEL P.
分类号
A62C2/16
主分类号
A62C2/16
代理机构
代理人
主权项
地址
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