Acon, Inc.

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Dayton, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Acoustical composite
- Patent number 4,077,491
- Issue date Mar 7, 1978
- Acon, Inc.
- Keith M. Hankel
- E04 - BUILDING
Information Patent Grant
Acoustical material for use in association with noise generating ma...
- Patent number 3,977,492
- Issue date Aug 31, 1976
- Acon, Inc.
- Keith M. Hankel
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

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