Electric alarm device
Electric alarm siren with arc-like runner legs
Electric apparatus for displaying a plurality of key symbols on
Electric bell having a mechanism for supporting electromagnetic
Electric horn
Electric horn
Electric horn with improved pole piece and adjusting cap
Electric horn with improved striker assembly
Electric horn with means for controlling curvature of the strike
Electric horn with solid state driver
Electric horn with solid state driver
Electric horn with twin driving electromagnets
Electric horns
Electric puke code modulation encoding arrangements
Electrical apparatus and method for electrically simulating a no
Electrical assembly
Electrical encoding device
Electrical noise generation circuits for use in conjunction with
Electrical simulation of percussive bell
Electrical synthesis of mechanical bell