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发明名称
Improvements in or relating to valves or cocks
摘要
申请公布号
GB390206(A)
申请公布日期
1933.04.03
申请号
GB19310027368
申请日期
1931.10.01
申请人
ARNOLD FRANK WILLS;PERCY WILLS
发明人
分类号
F16K1/46
主分类号
F16K1/46
代理机构
代理人
主权项
地址
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