Number | Name | Date | Kind |
---|---|---|---|
2744880 | Brown | May 1956 | |
2906650 | Wheaton | Sep 1959 | |
3863717 | Cooper | Feb 1975 | |
4003393 | Jaggard et al. | Jan 1977 | |
4216026 | Scott | Aug 1980 | |
4254559 | Purington, Jr. | Mar 1981 | |
4416703 | Scott | Nov 1983 | |
4473408 | Purington, Jr. | Sep 1984 | |
4537700 | Purington, Jr. | Aug 1985 | |
4543131 | Purington, Jr. | Sep 1985 |
Entry |
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Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 11, J. Wiley & Sons, N.Y. pp. 711-715, 1986. |
The Theory of the Photographic Process, 3rd Edition, The Macmillan Company, N.Y. pp. 45-60, 1980. |
"FLAGS" gas-line sediment removed using gel plug technology; Scott et al, Oil and Gas Journal; Oct. 26, 1981, pp. 97-109. |
"The Use of Gelly Pig Technology for Removal of Stuck Mechanical Pigs"; D. P. Nesbitt; OTC 6772, 23rd OTC, Houston, Tex. May 6-9, 1991. |