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发明名称
Variable-speed opening and closing device
摘要
申请公布号
US3043584(A)
申请公布日期
1962.07.10
申请号
US19590850812
申请日期
1959.11.04
申请人
HEINZ KIELHORN
发明人
KIELHORN HEINZ
分类号
E05F15/14;F16H19/00
主分类号
E05F15/14
代理机构
代理人
主权项
地址
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