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发明名称
A new or improved packing material for use in making pipe and other joints and method of making same
摘要
申请公布号
GB397219(A)
申请公布日期
1933.08.24
申请号
GB19320007387
申请日期
1932.03.12
申请人
EUGENE VICTOR HAYES-GRATZE
发明人
分类号
F16J15/10
主分类号
F16J15/10
代理机构
代理人
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地址
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