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经营范围
发明名称
Coupling or connecting device
摘要
申请公布号
US2715537(A)
申请公布日期
1955.08.16
申请号
US19520323996
申请日期
1952.12.04
申请人
HOFHEIMER RICHARD W
发明人
HOFHEIMER RICHARD W.
分类号
E04G7/22
主分类号
E04G7/22
代理机构
代理人
主权项
地址
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