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发明名称
Lens
摘要
申请公布号
US2004443(A)
申请公布日期
1935.06.11
申请号
US19340743964
申请日期
1934.09.14
申请人
AMERICAN AUTOMATIC DEVICES CO.
发明人
KOVAC RUDOLPH
分类号
F21V5/00
主分类号
F21V5/00
代理机构
代理人
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