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发明名称
ENTRIEGELBARER SCHIEBER FUER KAMERAS ZUM SCHUTZ DES OBJEKTIVS USW.
摘要
申请公布号
DE7022293(U)
申请公布日期
1971.03.11
申请号
DE19700022293U
申请日期
1970.06.13
申请人
NIGGELOH F
发明人
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主分类号
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