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发明名称
Protective device
摘要
申请公布号
US1810189(A)
申请公布日期
1931.06.16
申请号
US19290350245
申请日期
1929.03.27
申请人
AMERICAN ELECTRIC COMPANY, INC.
发明人
STANTON WILLARD J.
分类号
H04M1/74
主分类号
H04M1/74
代理机构
代理人
主权项
地址
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