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发明名称
MEANS FOR GRADING ARTICLES BY SIZE
摘要
申请公布号
CA523844(A)
申请公布日期
1956.04.17
申请号
CAD523844
申请日期
申请人
PETER RENOLD;STEPHEN BALLARD, JR.
发明人
PETER RENOLD;STEPHEN BALLARD, JR.
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主分类号
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