Research output: Patenting and IP registration › Certificate of registration
| Original language | Russian |
|---|---|
| Patent number | 1665855 (РФ) |
| IPC (International Patent Classification) | H 05 H 1/00 |
| Priority date | 7/08/89 |
| Filing date | 7/08/89 |
| State | Published - 1991 |
ID: 104052818