Felted together metal whiskers electric fluid heating device

Ferrite compositions for use in a microwave oven

Ferromagnetic element with temperature control

Ferroresonant transformer ballast for maintaining the...

Fiber reinforced plastic lattice body for reinforcing concrete

Fibrous heating element, method of production thereof and...

Fibrous microwave susceptor package

Field configure ballast

Field emitting device and method of making same

Filament power compensation for magnetron

Filament winding arrangement in ballast transformer

Filtered, high-frequency power supply circuit, particularly...

Fine-grained rare earth activated zinc sulfide phosphors for...

Finned surface electrical heating unit and method of making...

Finned surface electrical heating unit and method of making...

Fire hazard safety device for household appliances

Fitting for compact electric discharge lamps

Fixation of dyes and other chemicals in textile fibres

Fixed frequency, variable duty cycle, square wave dimmer for...

Flameless sample excitation for spectroscopic analysis