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发明名称
Method of and apparatus for testing
摘要
申请公布号
US1927058(A)
申请公布日期
1933.09.19
申请号
US19320603990
申请日期
1932.04.08
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
ARNSTEIN WALTER L.;RINEHART VENE E.
分类号
H04M3/24
主分类号
H04M3/24
代理机构
代理人
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