72419295
Mar 23, 1972
Feb 12, 1974
ELECTRONIC PROJECT KITS-NAMELY, KITS TO BUILD: ELECTRONIC SIREN BURGLAR ALARM, INTERCOM, AUDIO AMPLIFIER, METRONOME, TREMOLO, LIGHT FLASHER, BLINKING LIGHT DEVICE, PHOTO CELL NIGHT LIGHT, POWER SUPPLY, CODE OSCILLATOR, MICROPHONE, RADIO, SOUND OPERATED SWITCH, METAL LOCATOR, DEVICES FOR PROVIDING LIGHT PATTERN IN RESPONSE TO SOUND WAVES, ELECTRONIC EYE, PREAMPLIFIER, MEGAPHONE, MUSICAL SOUND DISTORTER, EAVESDROPPING DEVICE, DEVICE FOR CONVERTING POLICE, FIRE OR AIRCRAFT BROADCASTS INTO WAVES FOR AM RADIO, AUTOMOTIVE LIGHT EXTINGUISHER, STEREO, HEADPHONES, STEREO ADAPTOR; KITS TO PERFORM PRINTED CIRCUIT ETCHING AND ELECTROPLATING; AND PARTS FOR SUCH PROJECT KITS-NAMELY, CABINETS AND SPEAKERS
Housewares and Glass