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发明名称
Apparatus for flushing and scraping the inside of pipes
摘要
申请公布号
US3078487(A)
申请公布日期
1963.02.26
申请号
US19620189537
申请日期
1962.04.23
申请人
HICKS JR DRUERY F
发明人
JR. DRUERY F. HICKS,
分类号
E03F9/00
主分类号
E03F9/00
代理机构
代理人
主权项
地址
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