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发明名称
EXTRACTING MEASURING DEVICE
摘要
申请公布号
CA531971(A)
申请公布日期
1956.10.23
申请号
CAD531971
申请日期
申请人
ANNA S. CAMPBELL;GEORGE E. CAMPBELL, JR.
发明人
ANNA S. CAMPBELL;GEORGE E. CAMPBELL, JR.
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