| 发明名称 |
Piston ring |
| 摘要 |
|
| 申请公布号 |
US2485862(A) |
申请公布日期 |
1949.10.25 |
| 申请号 |
US19470720804 |
申请日期 |
1947.01.08 |
| 申请人 |
EDGAR CAZA |
发明人 |
CAZA EDGAR |
| 分类号 |
F16J9/14 |
主分类号 |
F16J9/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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