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发明名称
Signaling system
摘要
申请公布号
US2447098(A)
申请公布日期
1948.08.17
申请号
US19430492491
申请日期
1943.06.28
申请人
STANOLIND OIL AND GAS COMPANY
发明人
SILVERMAN DANIEL
分类号
G01V3/34
主分类号
G01V3/34
代理机构
代理人
主权项
地址
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