Combined Feeder and Hive Ventilator
Description:
Patent for improvements in bee-hives by providing means in which the hive can be ventilated during warm weather. The invention provides means in which the ventilating means can be removed or rendered inoperative whenever desired or during cold weather.
Date:
November 7, 1922
Creator:
Heim, Charles; Heim, Emil R.; Heim, Clarence C. & Heim, Edwin C.
Item Type:
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