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发明名称
Miner's lamp holder
摘要
申请公布号
US2233053(A)
申请公布日期
1941.02.25
申请号
US19400327727
申请日期
1940.04.03
申请人
HOMER HART JOHN
发明人
HART JOHN HOMER
分类号
F21L23/00
主分类号
F21L23/00
代理机构
代理人
主权项
地址
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