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经营范围
发明名称
Door operating mechanism
摘要
申请公布号
US2017578(A)
申请公布日期
1935.10.15
申请号
US19340738135
申请日期
1934.08.02
申请人
EUGENE ALSWORTH
发明人
ALSWORTH EUGENE
分类号
E05F11/12
主分类号
E05F11/12
代理机构
代理人
主权项
地址
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