CPC Subgroup
H03C 3/32 the tube being a magnetron
Full Title
Angle modulation (H03C5/00, H03C7/00 take precedence) > by means of transit-time tube > the tube being a magnetron
H03C 3/32 Angle modulation (H03C5/00, H03C7/00 take precedence) > by means of transit-time tube > the tube being a magnetron