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发明名称
Door opening device
摘要
申请公布号
US2924449(A)
申请公布日期
1960.02.09
申请号
US19550552627
申请日期
1955.12.12
申请人
RUSSELL HOPKINS
发明人
LEIMER ALBERT;SCHMID LUKAS
分类号
E05F15/12
主分类号
E05F15/12
代理机构
代理人
主权项
地址
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