| Anmelder |
Datum |
Patentnummer |
Cluster |
| Minnesota Mining and Manufacturing Company (St. Paul, MN) |
1978-07-20 | 4576850.txt | cluster_16 |
| Ciba-Geigy Corporation (Ardsley, NY) |
1987-07-31 | 4847335.txt | cluster_16 |
| Ciba-Geigy Corporation (Ardsley, NY) |
1989-04-12 | 4970277.txt | cluster_16 |