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经营范围
发明名称
Improved bubble pipe
摘要
申请公布号
GB591042(A)
申请公布日期
1947.08.05
申请号
GB19450010745
申请日期
1945.04.28
申请人
LEWIS GEORGE PIMBLETT
发明人
分类号
A63H33/28
主分类号
A63H33/28
代理机构
代理人
主权项
地址
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