157600 ⎘
Combustion-air or flue-gas circulation in or around stoves or ranges
Sub-classes:SYSTEMS AND METHODS OF PROVIDING MICRO-RENEWABLE ELECTRICAL ENERGY
#2Systems and methods of providing micro-renewable electrical energy
#3Combustion apparatus for both firewood and pellet fuel
#4Systems and methods of providing micro-renewable electrical energy
#5Air-cooled combustion furnace system
#6High velocity ignition system for ammunition