US5083136A
|
|
Transmission line coupling device with closed impedance matching loop
|
US4935746A
|
|
Efficiency monitoring antenna
|
US4999642A
|
|
Transmission line coupling device with closed impedance matching loop
|
US5179387A
|
|
Whip antenna operable without grounding
|
CA1301865C
|
|
Transmission line coupling device
|
US4829311A
|
|
High impedance, base loaded, whip antenna
|
US4360814A
|
|
Antenna loading device with series connected loading coils
|
US4280129A
|
|
Variable mutual transductance tuned antenna
|
DE2844106A1
|
|
HF tuned aerial with variable magnetic coupling and line impedance - uses flexible rod with knob at one end and nut holding insulating tube at other
|
US2298321A
|
|
Filter
|
US2103572A
|
|
Filter
|
US2064511A
|
|
Apparatus for filtering solids from liquids
|
US2064510A
|
|
Filter
|
CA823329A
|
|
Antenna
|