Mark Identification
HARMONIOUS DIAPHRAGM
Serial Number
97240883
Filing Date
Jan 27, 2022
Trademark by
Classification Information
Diaphragms sold as a component of soundbars, loudspeakers, and subwoofers
Electrical and Scientific Apparatus97240883
Jan 27, 2022
Diaphragms sold as a component of soundbars, loudspeakers, and subwoofers
Electrical and Scientific Apparatus