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经营范围
发明名称
Automatic door control
摘要
申请公布号
US1749186(A)
申请公布日期
1930.03.04
申请号
US19270200448
申请日期
1927.06.21
申请人
WILLIAM KOCH
发明人
KOCH WILLIAM
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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