Number | Date | Country | Kind |
---|---|---|---|
77008423 | Jan 1977 | SE |
Number | Name | Date | Kind |
---|---|---|---|
2328361 | Sanders | Aug 1943 | |
3020160 | Downing | Feb 1962 | |
3078287 | Downing | Feb 1963 | |
3252961 | Rodgers | May 1966 | |
3345353 | Klubien | Oct 1967 | |
3346393 | Bradford | Oct 1967 | |
3352841 | Lyon | Nov 1967 | |
3443691 | Nilsson | May 1969 | |
3780075 | Dufault et al. | Dec 1973 | |
3798126 | Gasser | Mar 1974 | |
3972779 | Harrison | Aug 1976 |
Number | Date | Country |
---|---|---|
2519701 | Nov 1976 | DE |
905547 | Jun 1960 | GB |
Entry |
---|
Chemical Engineer's Handbook, Perry, Fourth Edition, McGraw-Hill, 1969, pp. 22-39, 32, 33. |