3007416 | Pump for cellular fluid such as blood and the like | 1961-11-07 | ||
2954738 | Diaphragm pump | 1960-10-04 | ||
2925814 | Transfusion apparatus | 1960-02-23 | ||
2832294 | Heart pump | 1958-04-29 | ||
2815715 | Surgical pump | 1957-12-10 | ||
2812716 | Pumping device | 1957-11-12 | ||
2810347 | Fluid pump | 1957-10-22 |
GB287267A | 1928-03-22 | |||
FR1184203A | 1959-07-17 |