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发明名称
Objektiv mit kontinuierlich veraenderbarer Brennweite
摘要
申请公布号
DE1218178(B)
申请公布日期
1966.06.02
申请号
DE1960B058822
申请日期
1960.08.02
申请人
BELL & HOWELL COMPANY
发明人
COX ARTHUR;JOHNSON WALTER J.
分类号
G02B13/00
主分类号
G02B13/00
代理机构
代理人
主权项
地址
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