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发明名称
Bracket
摘要
申请公布号
US1882479(A)
申请公布日期
1932.10.11
申请号
US19280303159
申请日期
1928.08.31
申请人
BRITTIN EDWARD B
发明人
BRITTIN EDWARD B.
分类号
E04G1/32
主分类号
E04G1/32
代理机构
代理人
主权项
地址
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