See here one of the Sonomax patents
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www.google.ca/patents/USD635676 US Pat. D635676 - Filed 22 Dec 2009 - Issued 5 Apr 2011 - Sonomax Technologies Inc.
... Montreal (CA); Francis Bernier, Montreal (CA) (73) Assignee: Sonomax Technologies Inc., Montreal, Quebec (CA) (**) Term: 14 Years (21) Appl.No.
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Overview - Abstract - Drawing - Description - Claims
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