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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Plants, Animals & Agriculture
Class Information
Number: 449/21
Name: Bee culture > Hive > Passage > Queen/drone control means
Description: Structure intended to restrict passage such that a queen bee or a drone is limited in movement therethrough, while permitting passage of worker bees.










Patents under this class:

Patent Number Title Of Patent Date Issued
6645039 Honeycomb-shallow box partition for beehives Nov. 11, 2003
4455699 Pollen trap for double queen colony with queen excluder Jun. 26, 1984
4153960 Beehive May. 15, 1979
4135265 Bee hive Jan. 23, 1979
4094026 Beehive Jun. 13, 1978











 
 
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