Number | Name | Date | Kind |
---|---|---|---|
4053663 | Caldwell | Oct 1977 | |
4183983 | Cook | Jan 1980 | |
4330574 | Pierson | May 1982 | |
4369211 | Nitto | Jan 1983 | |
4444814 | Flinchum | Mar 1984 |
Number | Date | Country |
---|---|---|
847940 | Mar 1980 | BEX |
Entry |
---|
Heurtey-English Abstract Of Belgian Pat. No. 887,940 filed 3/14/80. |