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发明名称
Rotameter
摘要
申请公布号
US2130981(A)
申请公布日期
1938.09.20
申请号
US19370179272
申请日期
1937.12.11
申请人
SCHUTTE & KOERTING CO.
发明人
FISCHER ADELBERT K.;PETSCHE GUSTAV B.
分类号
G01F1/22
主分类号
G01F1/22
代理机构
代理人
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