Number | Name | Date | Kind |
---|---|---|---|
2878671 | Prosser et al. | Mar 1959 | |
3528278 | Sterling | Sep 1970 | |
3557619 | Hershler | Jan 1971 | |
3639770 | Zizelmann | Feb 1972 | |
4304989 | Vos et al. | Dec 1981 | |
4676638 | Yasuda | Jun 1987 | |
4737629 | Iwama et al. | Apr 1988 | |
4870292 | Alpert et al. | Sep 1989 | |
4880990 | Rando | Nov 1989 | |
4942306 | Colbourne | Jul 1990 | |
4979797 | Nemeth | Dec 1990 | |
5052818 | Nishizawa et al. | Oct 1991 | |
5088324 | Nemeth | Feb 1992 | |
5148826 | Bakhshaei | Sep 1992 | |
5176320 | Kraus et al. | Jan 1993 | |
5262640 | Purvis et al. | Nov 1993 | |
5278425 | Bendicks | Jan 1994 | |
5323637 | Bendicks et al. | Jun 1994 | |
5341831 | Zur | Aug 1994 | |
5355122 | Ercikson | Oct 1994 | |
5381022 | Nemeth et al. | Jan 1995 | |
5391891 | Wiegleb et al. | Feb 1995 | |
5396325 | Carome et al. | Mar 1995 | |
5621699 | Bjornsson | Apr 1997 | |
5648724 | Yankielun et al. | Jul 1997 | |
5651500 | Patterson et al. | Jul 1997 |
Number | Date | Country |
---|---|---|
0 347 095 A1 | Dec 1989 | EPX |
Entry |
---|
Lyle Prunty and R. Sam Alessi, "Prospects for Fiber Optics Sensing in Soil", pp. 261-265 1996. |