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US1840474A
|
|
Draft control for heaters
|
|
US1751782A
|
|
Carton for sectoral canopies
|
|
US1813001A
|
|
Electrically heated brooder
|
|
US1749990A
|
|
Oil-burning brooder
|
|
US1763779A
|
|
Oil burner
|
|
US1733888A
|
|
Thermostatic oil-control valve
|
|
US1729912A
|
|
Poultry fountain or feeder
|
|
US1790045A
|
|
Collapsible mash feeder
|
|
US1735246A
|
|
Incubator heater
|
|
US1758155A
|
|
Coal-burning brooder
|
|
US1673334A
|
|
Hover for oil-burning brooders
|
|
US1715755A
|
|
Egg tray for incubators
|
|
US1705773A
|
|
Hooded brooder stove
|
|
US1655274A
|
|
Cleanable poultry fountain
|
|
US1629191A
|
|
Oil-burner-control mechanism
|
|
US1573382A
|
|
Brooder stove
|
|
US1519819A
|
|
Brooder stove
|
|
US1531236A
|
|
Oil burner for brooders
|
|
US1571280A
|
|
Incubator
|
|
US1343010A
|
|
Poultry-fountain and heater therefor
|
