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经营范围
发明名称
Door closer
摘要
申请公布号
US2908050(A)
申请公布日期
1959.10.13
申请号
US19570685685
申请日期
1957.09.23
申请人
THE SHELBY SPRING HINGE COMPANY
发明人
SULLIVAN HAROLD R.;JR. CAMPBELL A. NEPTUNE,
分类号
E05F1/12
主分类号
E05F1/12
代理机构
代理人
主权项
地址
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