SEJONGPIA INC.

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Seoul, KR

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Information Patent Application
SOUND TRACING METHOD AND DEVICE TO IMPROVE SOUND PROPAGATION PERFOR...
- Publication number 20230199418
- Publication date Jun 22, 2023
- SEJONGPIA INC.
- Woo Chan PARK
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SOUND TRACING APPARATUS AND METHOD
- Publication number 20220086583
- Publication date Mar 17, 2022
- SEJONGPIA
- Woo Chan PARK
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Trademarklast 30 trademarks