Whistle with several chambers

Whistle with several chambers

  • CN 1,418,359 A
  • Filed: 01/15/2001
  • Published: 05/14/2003
  • Est. Priority Date: 01/14/2000
  • Status: Abandoned Application
First Claim
Patent Images

1. whistle, it has a bean-free chamber and and comprises an associated displaceable element, and as beans or rotatable '"'"'s chamber, above-mentioned chamber has a shared mouthpiece, perhaps is positioned to the mouthpiece that can be blown into simultaneously basically by the user.

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