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发明名称
Method of and apparatus for testing metals and alloys
摘要
申请公布号
US1814522(A)
申请公布日期
1931.07.14
申请号
US19290330564
申请日期
1929.01.05
申请人
MILWELL ELECTRIC DEVICES CORPORATION
发明人
MILLER MAX A.
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主分类号
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代理人
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