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发明名称
VERSCHLUSSPLATTE FUER KONTROLLOEFFNUNGEN IN LEITUNGSROHREN, INSBESONDERE IN FALLROHREN FUER SCHUETTGUT.
摘要
申请公布号
DE1892881(U)
申请公布日期
1964.05.14
申请号
DE196300J2230U
申请日期
1963.12.07
申请人
JOHANNES JACOB
发明人
JOHANNES JACOB
分类号
主分类号
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代理人
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