发明名称 |
Sewer rod guide |
摘要 |
|
申请公布号 |
US2163947(A) |
申请公布日期 |
1939.06.27 |
申请号 |
US19360112699 |
申请日期 |
1936.11.25 |
申请人 |
JOHN HOCHBERGER |
发明人 |
HOCHBERGER JOHN |
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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