Chungdam Song

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Seoul, KR

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Patents Applicationslast 30 patents

Information Patent Application
Surface mountable electret condenser microphone
- Publication number 20060280320
- Publication date Dec 14, 2006
- BSE CO., LTD.
- Chungdam Song
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dual base of an electret condenser microphone and electret condense...
- Publication number 20060256984
- Publication date Nov 16, 2006
- Chungdam Song
- H04 - ELECTRIC COMMUNICATION TECHNIQUE