US PATENT SUBCLASS 449 / 24
.~.~ Adjustable

Current as of: June, 1999
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449 /   HD   BEE CULTURE

3  DF  HIVE {19}
20  DF  .~ Passage {4}
24.~.~ Adjustable {1}
25  DF  .~.~.~> Entrance

DEFINITION

Classification: 449/24

Adjustable:

(under subclass 20) Structure including provision to modify the position or size of the passage.