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发明名称
Illuminated spirit level
摘要
申请公布号
US2695949(A)
申请公布日期
1954.11.30
申请号
US19520266847
申请日期
1952.01.17
申请人
JAMES L. CUNINGHAM
发明人
ASHWILL JAMES H.
分类号
G01C9/32
主分类号
G01C9/32
代理机构
代理人
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地址
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