发明名称 |
Automatic water control |
摘要 |
|
申请公布号 |
US1850159(A) |
申请公布日期 |
1932.03.22 |
申请号 |
US19310509831 |
申请日期 |
1931.01.19 |
申请人 |
RICHARD R. POSTON |
发明人 |
SCOVEL THOMAS L. |
分类号 |
F22D5/08 |
主分类号 |
F22D5/08 |
代理机构 |
|
代理人 |
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主权项 |
|
地址 |
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