The sounding diaphragm plate and its dynamic loudspeaker of resonance damping (RAD) method manufacture
The sounding diaphragm plate and its dynamic loudspeaker of resonance damping (RAD) method manufacture
- CN 103,716,746 B
- Filed: 10/08/2012
- Issued: 02/22/2019
- Est. Priority Date: 10/08/2012
- Status: Active Grant
- EN CH
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- Pin
