IPC Subgroup
H03C 3/3 by means of transit-time tube
Introduced: September 1968
Last revised: January 2006
Full Title
Angle modulation > by means of transit-time tube
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- MODULATION
Related Keywords
TRANSIT -time tubes used as modulators
1 direct subcode
Child Classifications
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- H03C 3/32 the tube being a magnetron