| Anmelder |
Datum |
Patentnummer |
Cluster |
| Canadian Patents & Development Limited (Ottawa, CA) |
1983-02-10 | 4496502.txt | cluster_6 |
| No Name |
1984-08-13 | 4549012.txt | cluster_25 |
| National Research Council of Canada (Ottawa, CA) |
1996-01-23 | 5698325.txt | cluster_25 |