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发明名称
VALVES
摘要
申请公布号
CA473246(A)
申请公布日期
1951.05.01
申请号
CAD473246
申请日期
申请人
BABSON BROS. CO.
发明人
HENRY B. BABSON
分类号
主分类号
代理机构
代理人
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