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经营范围
发明名称
Improvements in or relating to piston valves
摘要
申请公布号
GB545534(A)
申请公布日期
1942.06.01
申请号
GB19400017053
申请日期
1940.11.29
申请人
CREED AND COMPANY LIMITED;STANLEY ELLIS KIRK;WILLIAM BURNETT DREWELL
发明人
分类号
F16K27/04;G05D13/00
主分类号
F16K27/04
代理机构
代理人
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地址
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