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发明名称
Signal
摘要
申请公布号
US2214473(A)
申请公布日期
1940.09.10
申请号
US19360117325
申请日期
1936.12.23
申请人
HANDLAN, INC.
发明人
MANN LEO R.
分类号
B61L29/24
主分类号
B61L29/24
代理机构
代理人
主权项
地址
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