Number | Date | Country | Kind |
---|---|---|---|
52/131456 | Nov 1977 | JPX | |
52/132525 | Nov 1977 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3707372 | Hallman et al. | Dec 1972 | |
3996057 | Kawaziri et al. | Dec 1976 | |
4000334 | Hallman et al. | Dec 1976 | |
4137078 | Izu et al. | Jan 1979 |
Number | Date | Country |
---|---|---|
1286503 | Aug 1972 | GBX |
Entry |
---|
Derwent Publications 0929x/06 9-18-1974. |