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发明名称
Apparatus for calibrating and proving registers
摘要
申请公布号
US2126484(A)
申请公布日期
1938.08.09
申请号
US19360104718
申请日期
1936.10.08
申请人
PITTSBURGH EQUITABLE METER COMPANY
发明人
MACLEAN ALLEN D.
分类号
G01F25/00
主分类号
G01F25/00
代理机构
代理人
主权项
地址
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