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发明名称
Fire block setter
摘要
申请公布号
US2380487(A)
申请公布日期
1945.07.31
申请号
US19420429989
申请日期
1942.02.09
申请人
GEORGE ACKLEY SHERMAN
发明人
ACKLEY SHERMAN GEORGE
分类号
E04G21/26
主分类号
E04G21/26
代理机构
代理人
主权项
地址
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