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发明名称
Improvements in or relating to diaphragm substitutes for stuffing boxes
摘要
申请公布号
GB391902(A)
申请公布日期
1933.05.11
申请号
GB19310034786
申请日期
1931.12.16
申请人
ROYLES LIMITED;ALAN GILBERT ROYLE
发明人
分类号
F16J15/52
主分类号
F16J15/52
代理机构
代理人
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地址
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