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发明名称
Surveying instrument
摘要
申请公布号
US2531252(A)
申请公布日期
1950.11.21
申请号
US19470763303
申请日期
1947.07.24
申请人
BRUNSON AMBER N
发明人
BRUNSON AMBER N.
分类号
G01C1/02
主分类号
G01C1/02
代理机构
代理人
主权项
地址
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