Amplifying valves 19750
放大电子管
Chinese
放大电子管
English
Amplifying valves
Spanish
válvulas amplificadoras
- Site ref.
- 19750
- Class
- 09
- Included in
- Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)
Corresponding item in the CNIPA Table of Similar Goods and Services: 放大管（090038） similar group 0913
Matched automatically by Nice class and official English term; rely on each office's official text before filing.