CA1157526A1 - - Google Patents
Info
- Publication number
- CA1157526A1 CA1157526A1 CA 1157526 A1 CA1157526 A1 CA 1157526A1
- Authority
- CA
- Grant status
- Grant
- Patent type
Links
Family
ID=
Also Published As
| Publication number | Publication date | Type |
|---|---|---|
| CA1157526A (en) | 1983-11-22 | grant |
| GB2052994B (en) | 1984-03-21 | grant |
| GB2052994A (en) | 1981-02-04 | application |
| US4305402A (en) | 1981-12-15 | grant |