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发明名称
Testing machine
摘要
申请公布号
US1937115(A)
申请公布日期
1933.11.28
申请号
US19290392973
申请日期
1929.09.16
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
HAYFORD WALTER S.;TOWNSEND JOHN R.
分类号
G01N3/42
主分类号
G01N3/42
代理机构
代理人
主权项
地址
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