Inventor

CASS GLENN

US3 patents

Patents

3 patents

US6912290B1Jun 28, 2005

Speaker unit for low frequency reproduction

ALPINE ELECTRONICS INC20 citations90

US6868937B2Mar 22, 2005

Sub-woofer system for use in vehicle

ALPINE ELECTRONICS INC23 citations87

US6955241B2Oct 18, 2005

Speaker unit for low frequency reproduction

ALPINE ELECTRONICS INC7 citations71