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发明名称
Improved torsion balance
摘要
申请公布号
GB426179(A)
申请公布日期
1935.03.28
申请号
GB19340025373
申请日期
1934.09.03
申请人
NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ
发明人
分类号
G01V7/10
主分类号
G01V7/10
代理机构
代理人
主权项
地址
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