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发明名称
Als Spannverschluss ausgebildeter photographischer Objektivverschluss.
摘要
申请公布号
CH307996(A)
申请公布日期
1955.06.30
申请号
CHD307996
申请日期
1952.11.15
申请人
BURGER,ERICH
发明人
BURGER,ERICH
分类号
G03B9/70
主分类号
G03B9/70
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代理人
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