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摘要
申请公布号
US1971481(A)
申请公布日期
1934.08.28
申请号
US19320595110
申请日期
1932.02.25
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
ERICKSON JOHN
分类号
H01H63/06
主分类号
H01H63/06
代理机构
代理人
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