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发明名称
Bulb adjuster
摘要
申请公布号
US1747858(A)
申请公布日期
1930.02.18
申请号
US19250026177
申请日期
1925.04.27
申请人
MONOGRAM LENS CORPORATION
发明人
COULTER GUY H.
分类号
F21V14/02
主分类号
F21V14/02
代理机构
代理人
主权项
地址
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