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发明名称
Light conditioning device and method of manufacturing same
摘要
申请公布号
US2238008(A)
申请公布日期
1941.04.08
申请号
US19390251982
申请日期
1939.01.20
申请人
ALNCIN, INC.
发明人
BECK EARL W.;WALKER VICTOR
分类号
G02B1/12;G03B21/20
主分类号
G02B1/12
代理机构
代理人
主权项
地址
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