Number | Date | Country | Kind |
---|---|---|---|
82 04913 | Mar 1982 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
4038663 | Day | Jul 1977 | |
4264911 | Wilkinson | Apr 1981 | |
4308545 | Lehureau | Dec 1981 |
Number | Date | Country |
---|---|---|
0139702 | Oct 1979 | JPX |
7900205 | Jan 1979 | NLX |
Entry |
---|
Patent Abstracts of Japan, vol. 5, No. 150, Sep. 22, 1981, p. 146P81-56-83852, 56-83851. |