CHUAN HE

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Taoyuan City, TW

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Patents Applicationslast 30 patents

Information Patent Application
VIBRATION DAMPING LOUDSPEAKER
- Publication number 20250240558
- Publication date Jul 24, 2025
- FORTUNE GRAND TECHNOLOGY INC.
- PING-YU LEE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
VIBRATION DAMPING LOUDSPEAKER
- Publication number 20240430621
- Publication date Dec 26, 2024
- FORTUNE GRAND TECHNOLOGY INC.
- PING-YU LEE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE