Number | Date | Country | Kind |
---|---|---|---|
3327922 | Aug 1983 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2340787 | Zenner et al. | Feb 1944 | |
2724338 | Roth | Nov 1955 | |
3259072 | Carpenter | Jul 1966 | |
3558236 | Bylsma | Jan 1971 | |
4194360 | Stieger | Mar 1980 | |
4493620 | Takei et al. | Jan 1985 |
Number | Date | Country |
---|---|---|
2612118 | Jan 1976 | DEX |
Entry |
---|
"Die Kreiselpumpen fur Flussigkeiten und Gase" by Carl Pfleiderer, Springer Verlag, 1961, pp. 615,616. |