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经营范围
发明名称
Improvements in or relating to composite packing rings for pistons and stuffing boxes
摘要
申请公布号
GB420943(A)
申请公布日期
1934.12.11
申请号
GB19330034762
申请日期
1933.12.11
申请人
TAGE MADSEN
发明人
分类号
F16J9/16
主分类号
F16J9/16
代理机构
代理人
主权项
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