Number | Name | Date | Kind |
---|---|---|---|
3635762 | Ott et al. | Jan 1972 | |
4129919 | Fitch et al. | Dec 1978 | |
4475259 | Ishii et al. | Oct 1984 | |
5138733 | Bock | Aug 1992 | |
5533540 | Stanasolovich et al. | Jul 1996 | |
5534076 | Bran | Jul 1996 | |
5540245 | Munakata et al. | Jul 1996 | |
5581837 | Uchiyama et al. | Dec 1996 | |
5766685 | Smith | Jun 1998 |
Number | Date | Country |
---|---|---|
WO 9713590 | Apr 1997 | WOX |
Entry |
---|
Tube Resonator System Series RG-36/RS-36, High-Tech Ultrasonic Cleaning, by Telsonic UIltrasonics, Sep. 20,1993. |
Patent Abstracts of Japan, vol. 16, No. 95, Mar. 9, 1992 and JP 3-274722 (Hitachi Ltd.). |
Patent Abstracts of Japan, vol. 96, No. 2, Feb. 29, 1996 and JP 7-256217 (Puretetsuku). |
Patent Abstracts of Japan, vol. 97, No. 7, Jul. 31 1997 and JP 9-63998 (Sony Corp.). |