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Class Information
Number: 449/23
Name: Bee culture > Hive > Passage > One-way passage
Description: Structure intended to allow movement of bees in only a single direction.

Patents under this class:

Patent Number Title Of Patent Date Issued
4267612 Beehives May. 19, 1981
4229848 Bee escape board Oct. 28, 1980
4158900 Traffic regulating hive bottom board Jun. 26, 1979
4153960 Beehive May. 15, 1979
4094026 Beehive Jun. 13, 1978

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