Number | Name | Date | Kind |
---|---|---|---|
3414733 | Wunderman | Dec 1968 | |
3423594 | Galopin | Jan 1969 | |
3585454 | Roberts | Jun 1971 | |
3987300 | Palmer | Oct 1976 | |
4076376 | Slaughter | Feb 1978 | |
4081208 | Meade | Mar 1978 | |
4118100 | Goell et al. | Oct 1978 |
Number | Date | Country |
---|---|---|
2846773 | Oct 1978 | DEX |
2387519 | Nov 1978 | FRX |
Entry |
---|
Patents Abstracts of Japan, vol. 1, No. 90, Aug. 22, 1977. _ |
Patents Abstracts of Japan, vol. 2, No. 141, Nov. 22, 1978. _ |
Patents Abstracts of Japan, vol. 3, No. 1, Jan. 11, 1979. _ |