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Hong Kong, HK
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last 30 patents
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Patent Grant
Telephone with novel FSK decoding means, simultaneous off-hook call...
Patent number
6,226,369
Issue date
May 1, 2001
Cybiotronics Limited
Boon-Chen Lim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Telephone with novel FSK decoding means, simultaneous off-hook call...
Patent number
6,058,172
Issue date
May 2, 2000
Cybiotronics Limited
Boon-Chen Lim
H04 - ELECTRIC COMMUNICATION TECHNIQUE