Amusement devices: toys – Operated by relatively moving fluid or pressure differential – Including variable-size fluid chamber to move fluid
Patent
1994-09-16
1996-08-27
Hafer, Robert A.
Amusement devices: toys
Operated by relatively moving fluid or pressure differential
Including variable-size fluid chamber to move fluid
A63H 331
Patent
active
055494986
ABSTRACT:
A game call for providing a high sound quality. The game call has a weighted undulated bellows to provide adequate air flow to allow three or more pitch generators to be powered for obtaining three or more different sound pitches whereby to obtain a more authentic wild game sound.
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Hafer Robert A.
Muir D. Neal
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