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经营范围
发明名称
Substation locking apparatus
摘要
申请公布号
US2494449(A)
申请公布日期
1950.01.10
申请号
US19440525019
申请日期
1944.03.04
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
OBERGFELL AMANDA
分类号
H04M1/08
主分类号
H04M1/08
代理机构
代理人
主权项
地址
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