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发明名称
TUBE CLEANER
摘要
申请公布号
CA359287(A)
申请公布日期
1936.07.21
申请号
CAD359287
申请日期
申请人
THE STANDARD OIL DEVELOPMENT COMPANY
发明人
GEORGE J. LANGMYHR
分类号
主分类号
代理机构
代理人
主权项
地址
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