Curved heat exchange apparatus for solar heating and air-conditi
Curved inshot burner and method for vent-within-casing furnace
Curved structure and method for making same
Curvilinear solar energy collector
Cylindrical catalytic heater
Cylindrical radiant energy direction device with refractive medi
Cylindrical rotary controller for a solar heat system
Cylindrical solar energy collector
Cylindro-parabolical solar energy collector