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发明名称
Lumberman's rule
摘要
申请公布号
US2790242(A)
申请公布日期
1957.04.30
申请号
US19550547933
申请日期
1955.11.21
申请人
TUYLE HERBERT OTTO VAN
发明人
TUYLE HERBERT OTTO VAN
分类号
G01B3/04
主分类号
G01B3/04
代理机构
代理人
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地址
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