Whistle

Details Whistle Whistle

1979-11-08

1981-07-28

Peshock, Robert

A63H 500

Patent

active

042802997

ABSTRACT:
A whistle including a mouthpiece adapted to be fit on a body. The body has three cavities different in depth. A protuberance provided in the chamber at the bottom of the mouthpiece is adapted to cover one of the cavities. Different pitches of the sound can be produced according to which cavity is covered.

REFERENCES:
patent: 1383878 (1921-07-01), Taylor
patent: 2505141 (1950-04-01), Pitts

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