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发明名称
Vorrichtung zum Anzeigen des OEffnungsgrades von Ventilen, insbesondere der Absperrventile von Hochdruckgasflaschen fuer Atemgeraete
摘要
申请公布号
DE662558(C)
申请公布日期
1938.07.15
申请号
DENDATD072999D
申请日期
申请人
DRAEGERWERK HEINR.;BERNH. DRAEGER
发明人
分类号
F16K37/00
主分类号
F16K37/00
代理机构
代理人
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地址
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