Membership
Tour
Register
Log in
Yuzo Kawai
Follow
Person
Nara, JA
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Roof ventilator
Patent number
3,942,422
Issue date
Mar 9, 1976
Suiden Kabushiki Kaisha
Yuzo Kawai
F24 - HEATING RANGES VENTILATING