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发明名称
Signal device
摘要
申请公布号
US2195374(A)
申请公布日期
1940.03.26
申请号
US19360104182
申请日期
1936.10.06
申请人
WALLACE & TIERNAN PRODUCTS, INC.
发明人
WALLACE CHARLES F.;MACKAY JOHN R.
分类号
B61L5/18;F21V19/04;G08B5/36
主分类号
B61L5/18
代理机构
代理人
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地址
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