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经营范围
发明名称
PIPE WIPER
摘要
申请公布号
US3422483(A)
申请公布日期
1969.01.21
申请号
USD3422483
申请日期
1966.05.02
申请人
ORVILLE L. CRAYCRAFT
发明人
ORVILLE L. CRAYCRAFT
分类号
B08B9/023;E21B33/08;(IPC1-7):A47L13/42
主分类号
B08B9/023
代理机构
代理人
主权项
地址
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