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发明名称
Instrument level
摘要
申请公布号
US2775423(A)
申请公布日期
1956.12.25
申请号
US19530391947
申请日期
1953.11.13
申请人
STRASS ALBERT M
发明人
STRASS ALBERT M.
分类号
G01C1/02;G01C9/24
主分类号
G01C1/02
代理机构
代理人
主权项
地址
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