RIGID HEATING ELEMENT DEVICE FOR HEATING STUCK OR RUSTED NUTS AND BOLTS TO FACILITATE THEIR REMOVAL WITH NO ATTENDANT EMANATION OF FLAMES

Networking apparatus, which eliminates data collisions in the network in which it is installed

Data collection and communication network systems; meter interface units comprised of mechanical and optical sensors and encoders; telephone, cellular and radio transceivers; intelligent communication adapters; switchpoints; inbound and outbound communication systems for energy, water and fuel data, and other monitoring points

AUDIO-VISUAL TEACHING AND MEMORY MACHINE

communications network interconnection hardware, including routers and bridges

Optical instruments and apparatuses, namely, optical receivers, optical transceivers, optical data links for use in solar energy plants; optical lenses for solar energy plants, in particular for photovoltaic installations; apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity, namely, electrical switches, electrical transformers, as well as electronic and electric parts and accessories thereof, namely, amplifiers, anodes, branc...

visual training device for bowlers in the nature of sports goggles