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发明名称
Selbsttätige Klemmvorrichtung zur Feststellung eines an einer Säule verstellbaren photographischen Vergrößerungsapparates.
摘要
申请公布号
AT133594(B)
申请公布日期
1933.05.26
申请号
ATD133594
申请日期
1931.05.02
申请人
ERNST REGENTIK
发明人
ERNST REGENTIK
分类号
主分类号
代理机构
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