Number | Name | Date | Kind |
---|---|---|---|
2387266 | Holland | Oct 1945 | A |
2410992 | Myklestad | Nov 1946 | A |
2905458 | Mason | Sep 1959 | A |
3871193 | Young | Mar 1975 | A |
3941190 | Conover | Mar 1976 | A |
4036335 | Thompson et al. | Jul 1977 | A |
4128149 | Leppich | Dec 1978 | A |
4186569 | Aumann | Feb 1979 | A |
4194582 | Ostertag | Mar 1980 | A |
4203507 | Tomita et al. | May 1980 | A |
4246765 | Zabcik | Jan 1981 | A |
4305486 | Cowan | Dec 1981 | A |
4388973 | Winkelmann et al. | Jun 1983 | A |
4423800 | Kobiske et al. | Jan 1984 | A |
4456233 | Muller | Jun 1984 | A |
4779852 | Wassell | Oct 1988 | A |
4817710 | Edward et al. | Apr 1989 | A |
4826094 | Whiteley | May 1989 | A |
4844181 | Bassinger | Jul 1989 | A |
4932471 | Tucker et al. | Jun 1990 | A |
5083623 | Barrington | Jan 1992 | A |
5117911 | Navarette et al. | Jun 1992 | A |
5133419 | Barrington | Jul 1992 | A |
5188191 | Tomer | Feb 1993 | A |
5778987 | Baiden et al. | Jul 1998 | A |
5968102 | Ichimaru et al. | Oct 1999 | A |
6244577 | Bucholtz | Jun 2001 | B1 |
Number | Date | Country |
---|---|---|
392634 | Apr 1991 | JP |
9309313 | Dec 1997 | JP |
Entry |
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Owen Oil Tools Inc 1997 Catalog 3½ Vertical Shock Absorber Owen Oil Tools Inc, Ft Worth TX 1997. |
Halliburton Energy Services Inc. 1998 Catalog Vertical Shock Absorber. |