序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
---|---|---|---|---|---|---|
1 | Feed-control apparatus for steam boilers | US64240423 | 1923-05-31 | US1579526A | 1926-04-06 | OTTO GUNTHER |
2 | Method and apparatus for controlling the feed-water supply to steam boilers | US64220923 | 1923-05-29 | US1579312A | 1926-04-06 | OTTO GUENTHER |
3 | Boiler feed-water apparatus | US59666122 | 1922-10-24 | US1559730A | 1925-11-03 | JOSEF MUCHKA |