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发明名称
Spirit level
摘要
申请公布号
US2634509(A)
申请公布日期
1953.04.14
申请号
US19520278637
申请日期
1952.03.26
申请人
ROBERTS SINCLAIR T
发明人
ROBERTS SINCLAIR T.
分类号
G01C9/34
主分类号
G01C9/34
代理机构
代理人
主权项
地址
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