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发明名称
Explosion-proof lighting unit
摘要
申请公布号
US2339670(A)
申请公布日期
1944.01.18
申请号
US19420443861
申请日期
1942.05.21
申请人
JOHN A. BENSON;ARTHUR A. BENSON;JOHN E. BENSON;ROBERT H. BENSON;WILLIAM F. BENSON;EDWARD L. BENSON
发明人
BENSON ERNEST H.
分类号
F21V25/12
主分类号
F21V25/12
代理机构
代理人
主权项
地址
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