Number | Name | Date | Kind |
---|---|---|---|
3567399 | Altmann et al. | Mar 1971 | |
3798883 | Heeney | Mar 1974 | |
3868210 | Simpson et al. | Feb 1975 | |
3892519 | Reed et al. | Jul 1975 | |
4255120 | Straitz, III | Mar 1981 | |
4516932 | Chaudot | May 1985 | |
4596586 | Davies et al. | Jun 1986 | |
4838184 | Young et al. | Jun 1989 | |
4848995 | Samish | Jul 1989 | |
5380195 | Reid et al. | Jan 1995 |
Number | Date | Country |
---|---|---|
1253427 | May 1989 | CAX |
2113764 | Jun 1995 | CAX |
Entry |
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One-page letter of Altex Oilfield Equipment Ltd. dated Nov. 25, 1996 with two enclosures: two-page memo of Paul Wierzba dated Dec. 1, 1996 entitled "Design Modification to Altex Portable Flare Tank"; three-page promotional pamphlet, undated, of Altex Oilfield Equipment Ltd. |