|
US1569633A
|
|
Oil control for burners
|
|
US1596771A
|
|
Thermostatic self-regulating valve
|
|
US1533038A
|
|
Oil container
|
|
US1596770A
|
|
Self-regulating valve
|
|
US1559996A
|
|
Burner
|
|
US1528702A
|
|
Oil container
|
|
US1596772A
|
|
Burner well
|
|
US1530423A
|
|
Radiator or drum
|
|
US1518007A
|
|
Heater
|
|
US1520605A
|
|
Heater for hovers and brooders
|
|
US1528701A
|
|
Radiator for hovers or brooders
|
|
US1526184A
|
|
Oil container
|
|
US1470491A
|
|
Brooder
|
|
US1475030A
|
|
Ball-valve control
|
|
US1432576A
|
|
Heating system for brooders, incubators, and the like
|
|
US1427704A
|
|
Burner for oil-heating systems
|
|
US1427703A
|
|
Heating system for brooders, incubators and the like
|
|
US1432575A
|
|
Heating system for brooders, incubators, and the like
|
|
US1432574A
|
|
Heating system for incubators, brooders, and the like
|
|
US1392709A
|
|
Heater for incubators
|
