Number | Date | Country | Kind |
---|---|---|---|
341/91 | Feb 1991 | ATX |
Number | Name | Date | Kind |
---|---|---|---|
1689791 | McClatchie | Oct 1928 | |
1743582 | Wiltse | Jan 1930 | |
3746049 | O'Connor | Jul 1973 | |
4682939 | Petro | Jul 1987 | |
4981423 | Bissonnette | Jan 1991 |
Number | Date | Country |
---|---|---|
0281654 | Sep 1988 | EPX |
0308827 | Mar 1989 | EPX |
2637321 | Feb 1977 | DEX |
3045192 | Jun 1982 | DEX |
3324775 | Jan 1984 | DEX |
Entry |
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PCT Publication No. WO81/01315 published May 14, 1981. |
Patent Abstracts of Japan, vol. 9, No. 256, 1979 (60-104819). |