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发明名称
Электрический сейсмограф
摘要
申请公布号
SU54368(A1)
申请公布日期
1938.11.30
申请号
SU19370000808
申请日期
1937.11.02
申请人
IVANOV A.G.
发明人
IVANOV A.G.
分类号
G01V1/18
主分类号
G01V1/18
代理机构
代理人
主权项
地址
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