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发明名称
Contour or level indicating and recording device
摘要
申请公布号
US3364579(A)
申请公布日期
1968.01.23
申请号
US19650445123
申请日期
1965.04.02
申请人
EARL H. FISHER
发明人
FISHER EARL H.
分类号
E01B35/00
主分类号
E01B35/00
代理机构
代理人
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地址
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