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Patent Law
: Anticipate This!They Invented What? (No. 138)
By Jake Ward
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U.S. Pat. No. 4,834,212: Sound muffler for covering the mouth.
We claim:
1. A human sound muffler and indicator comprising a unitary body adapted to be grasped and manipulated by a user, at least one end of said body comprising a saddle shaped body of compliant sound absorbing foam material adapted to fit over the mouth of a [...]
Full post as published by Anticipate This! on May 20, 2009 (boomark / email).
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