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发明名称
Signal
摘要
申请公布号
US2061871(A)
申请公布日期
1936.11.24
申请号
US19340741178
申请日期
1934.08.23
申请人
ROBERT R. WOOTEN
发明人
HESTER LORING B.
分类号
B61L5/12
主分类号
B61L5/12
代理机构
代理人
主权项
地址
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