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经营范围
发明名称
Valve tubes
摘要
申请公布号
GB436036(A)
申请公布日期
1935.10.03
申请号
GB19340025074
申请日期
1934.08.31
申请人
DUNLOP RUBBER COMPANY LIMITED;JOSEPH ALEC ANDREWS;GEOFFREY WILLIAM TROBRIDGE;EDWARD ARTHUR MURPHY
发明人
分类号
F16K15/20
主分类号
F16K15/20
代理机构
代理人
主权项
地址
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