Number | Name | Date | Kind |
---|---|---|---|
1422302 | Parker | Jul 1922 | |
1481157 | Smith | Jan 1924 | |
1702822 | Ferguson | Feb 1929 | |
2509688 | Loosli | May 1950 | |
2650070 | Lundeen | Aug 1953 | |
2879680 | Beeman et al. | Mar 1959 | |
3023651 | Wallace | Mar 1962 | |
3180186 | Catland | Apr 1965 | |
3261241 | Catland | Jul 1966 | |
3540326 | Dickmann et al. | Nov 1970 | |
3799010 | Guier | Mar 1974 | |
3875826 | Dreyfuss et al. | Apr 1975 | |
3892140 | Fox et al. | Jul 1975 | |
3906820 | Hauk | Sep 1975 | |
4079640 | Golden | Mar 1978 | |
4084453 | Eckel | Apr 1978 | |
4092881 | Jurgens et al. | Jun 1978 | |
4099429 | Hauk | Jul 1978 | |
4167128 | Chandler et al. | Sep 1979 | |
4170907 | Cathcart | Oct 1979 | |
4170908 | Peveto et al. | Oct 1979 | |
4192206 | Schulze-Beckinghausen | Mar 1980 | |
4212212 | Chandler et al. | Jul 1980 | |
4266450 | Farr et al. | May 1981 | |
4273010 | Farr et al. | Jun 1981 | |
4280397 | Peveto | Jul 1981 | |
4290304 | Eckel | Sep 1981 | |
4346629 | Kinzbach | Aug 1982 | |
4445402 | Farr | May 1984 | |
4471674 | Doss | Sep 1984 | |
4512216 | Callegari et al. | Apr 1985 | |
4604922 | Soutsos | Aug 1986 | |
4688453 | Schulze-Beckinghausen | Aug 1987 | |
4774860 | Hauke | Oct 1988 |
Number | Date | Country |
---|---|---|
480401 | Jan 1952 | CAX |
175902 | Oct 1965 | SUX |
457593 | Mar 1975 | SUX |
489626 | Oct 1975 | SUX |
Entry |
---|
1988-1989 General Services and Products catalog Weatherford (pp. 4108; 4094-4096; 4112-4121) Weatherford Power Equipment. |