Membership
Tour
Register
Log in
Harumitsu Kato
Follow
Person
Hachioji, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Bass-reflex type speaker system
Patent number
4,413,703
Issue date
Nov 8, 1983
Trio Kabushiki Kaisha
Harumitsu Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE