Photoflash lamp with modified polycarbonate coating
Photoflash lamp with polycarbonate coating
Photographic flashlamp unit
Radiation switch for photoflash unit
Selective actuating mechanism for signal device using percussive
Selective firing mechanism for array of percussive flashlamps
Self-defense apparatus comprising flashcube light source
Slash burning
Switching devices for photoflash unit
Switching devices for photoflash unit
Switching devices for photoflash unit
Switching devices for photoflash unit
Switching devices for photoflash unit
Switching devices for photoflash unit
Test photoflash lamp