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发明名称
Remote control door operator
摘要
申请公布号
US2252172(A)
申请公布日期
1941.08.12
申请号
US19400327957
申请日期
1940.04.05
申请人
WALTER GALEAZI
发明人
GALEAZI WALTER
分类号
E05F15/04
主分类号
E05F15/04
代理机构
代理人
主权项
地址
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