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发明名称
Vorrichtung zur gleichzeitigen Beleuchtung und indirekten Beobachtung von in Hohlräumen befindlichen Stellen.
摘要
申请公布号
CH242654(A)
申请公布日期
1946.05.31
申请号
CHD242654
申请日期
1943.12.23
申请人
AMANN,J.
发明人
AMANN,J.
分类号
G02B23/24
主分类号
G02B23/24
代理机构
代理人
主权项
地址
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