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发明名称
Erdinduktorkompass
摘要
申请公布号
DE586286(C)
申请公布日期
1933.10.19
申请号
DE1928P058910D
申请日期
1928.11.04
申请人
PIONEER INSTRUMENT COMPANY, INCORPORATED
发明人
分类号
G01C17/30
主分类号
G01C17/30
代理机构
代理人
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