Number | Name | Date | Kind |
---|---|---|---|
2582669 | Battle | Jan 1952 | |
2589374 | Hannon | Mar 1952 | |
2716512 | Needles | Aug 1955 | |
4632287 | Bevelander | Dec 1986 | |
4717053 | Wang | Jan 1988 | |
5085358 | Lam | Feb 1992 |
Number | Date | Country |
---|---|---|
203175 | Mar 1959 | AUX |
61990 | Jun 1948 | NLX |
Entry |
---|
WO86/06600, WIPO Publication, Oct. 1985, Kodet, 223/94. |