Number | Name | Date | Kind |
---|---|---|---|
3763631 | Horn et al. | Oct 1973 | |
3805685 | Carng | Apr 1974 | |
3854388 | King | Dec 1974 | |
3907525 | King | Sep 1975 | |
4011101 | Levenbach et al. | Mar 1977 | |
4036994 | Ear | Jul 1977 | |
4040042 | Mayer | Aug 1977 | |
4050291 | Nelson | Sep 1977 | |
4066064 | Vandas | Jan 1978 | |
4084947 | Ear | Apr 1978 | |
4120671 | Steinmeyer | Oct 1978 |
Entry |
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O.G. vol. 969, No. 3 of the U.S. Patent & Trademark Office, 4/18/78, pp. 1029 & 1030. |