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发明名称
DOOR SAFETY CONTROL
摘要
申请公布号
CA382124(A)
申请公布日期
1939.06.20
申请号
CAD382124
申请日期
申请人
BURT A. PETERSON
发明人
BURT A. PETERSON
分类号
主分类号
代理机构
代理人
主权项
地址
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