发明名称 |
Valve |
摘要 |
|
申请公布号 |
US2271785(A) |
申请公布日期 |
1942.02.03 |
申请号 |
US19400334777 |
申请日期 |
1940.05.13 |
申请人 |
WATKINS WALTER G |
发明人 |
WATKINS WALTER G. |
分类号 |
F16K1/30 |
主分类号 |
F16K1/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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