Filed: May 7, 2021[ Audiovisual teaching apparatus, namely, audiovisual receivers for teaching purpose; ] data processing apparatus; enlarging…Owned by: CHANGENOWSerial Number: 79332169
Filed: May 7, 2021[ Audiovisual teaching apparatus, namely, audiovisual receivers for teaching purpose; ] data processing apparatus; enlarging…Owned by: CHANGENOWSerial Number: 79332170