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发明名称
Liquid graduate
摘要
申请公布号
US2625823(A)
申请公布日期
1953.01.20
申请号
US19480022790
申请日期
1948.04.23
申请人
ERICKSON ELMER L
发明人
ERICKSON ELMER L.
分类号
G01F19/00
主分类号
G01F19/00
代理机构
代理人
主权项
地址
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