Device for the transmission of solar energy to a liquid medium

Device for transporting and storing cooked food and...

Device for utilizing the heat energy of solar radiation

Differential temperature controller for use in a solar energy co

Differential thermostatic controller for solar heating system

Disced friction heater

Disposable food heater

Disposable heat storage unit

Disposable heating unit for food containers

Disposable infant heel warmer

Disposable warmer and bag member for the same

Door lock defroster

Drywell table

Electrochemical heating device

Electromagnetic radiation reflector

Energy collector for collecting solar energy and the like

Energy concentrator system

Energy conversion apparatus

Energy roof

Energy roof