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发明名称
VERSCHLUSS FUER ROHRLEITUNGEN, BEHAELTER U. DGL.
摘要
申请公布号
DE1644067(U)
申请公布日期
1952.09.18
申请号
DE195200B9298U
申请日期
1952.06.20
申请人
EMIL BECKER
发明人
EMIL BECKER
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主分类号
代理机构
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