Patent:CN2048213u
Patent: | CN 2048213u |
Titel: | Azimuth Slide Rule Of Elliptical Closed And Open-Hole |
Datum: | 22.11.1989 |
Ort: | |
Land: | China |
Person: | Chengjia Wang |
Firma: | |
Links im Rechnerlexikon: | Rechenschieber |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | CN2048213u |
- DATUM: 22.11.1989
- TITEL: AZIMUTH SLIDE RULE OF ELLIPTICAL CLOSED AND OPEN-HOLE
- PERSON: WANG CHENGJIA CN