This is a continuation of application Ser. No. 170,359, filed July 21, 1980, now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
2455941 | Huseat et al. | Dec 1948 | |
3073406 | Westfbad | Jan 1963 | |
3114875 | Haagensen | Dec 1963 | |
3832677 | Brender et al. | Aug 1974 | |
3909775 | Lauigne | Sep 1975 | |
3909776 | Broding et al. | Sep 1975 | |
3938072 | Baird et al. | Feb 1976 | |
4013950 | Falls | Mar 1977 | |
4045724 | Shuck et al. | Aug 1977 | |
4168483 | Parthasarathy et al. | Sep 1979 | |
4255798 | Havira | Mar 1981 | |
4319346 | MacDonald | Mar 1982 | |
4328567 | Dodge | May 1982 | |
4363112 | Widrow | Dec 1982 | |
4369497 | Poupon et al. | Jan 1983 |
Number | Date | Country |
---|---|---|
2283449 | Jan 1974 | FRX |
2034888 | Jun 1980 | GBX |
544925 | Jan 1978 | SUX |
651282 | Mar 1979 | SUX |
Entry |
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Chaney et al., "Some Effects of Frequency . . . Acoustic Logs", 4/66, pp. 407-411, Jour. of Petr. Tech. |
Jachosky et al., "Frequency Analysis of Seismic Waves", 10/52, pp. 721-738, Geophysics, vol. 17, #4. |
Morita et al., "Contact Resonance of Vibration . . . ," 1977, pp. 601-605, Jour. Acoustical Soc. of Japan, vol. 33, #11. |
Number | Date | Country | |
---|---|---|---|
Parent | 170359 | Jul 1980 |