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发明名称
SCHLAUCH-SICHERHEITSVENTIL, INSBESONDERE FUER DEN BERGBAU.
摘要
申请公布号
DE1798040(U)
申请公布日期
1959.10.15
申请号
DE195900D8445U
申请日期
1959.06.15
申请人
GERD DUSCHA;WILFRIED ZERFASS
发明人
GERD DUSCHA;WILFRIED ZERFASS
分类号
主分类号
代理机构
代理人
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