KR970047874U
(en )
1997-07-31
Speaker output control circuit of telephone handset
DE29515644U1
(en )
1995-12-07
Telephone handset
KR970015705U
(en )
1997-04-28
Gain adjustment circuit of microphone
KR970047873U
(en )
1997-07-31
Telephone ring tone control circuit
KR970020052U
(en )
1997-05-26
Dialing Voice Output Phone
KR960027888U
(en )
1996-08-17
External handset of cordless phone
KR970007449U
(en )
1997-02-21
Receive volume control of telephone
KR960025995U
(en )
1996-07-22
Ring volume control circuit of telephone
KR970003503U
(en )
1997-01-24
Mute circuit of sound equipment using telephone
KR970007438U
(en )
1997-02-21
Dimming button device of telephone
KR970011479U
(en )
1997-03-29
Connection structure of telephone handset
KR970004549A
(en )
1997-01-29
Ringtone output device and method of the phone
KR970047871U
(en )
1997-07-31
Telephone handset input cutoff circuit
KR980005824U
(en )
1998-03-30
Incoming volume control of telephone
KR970047862U
(en )
1997-07-31
Dial correction circuit of telephone
KR970011495U
(en )
1997-03-29
Voice tone signal output device for telephone
KR970019988U
(en )
1997-05-26
Automatic voice output control circuit of sound equipment
KR960006552U
(en )
1996-02-17
Call recording circuit of telephone
KR970003521U
(en )
1997-01-24
Telephone ring tone selection circuit
KR970047834U
(en )
1997-07-31
Output control device of telephone transmitter
KR940008934U
(en )
1994-04-21
Microphone output muting circuit when no signal
KR970047676U
(en )
1997-07-31
Output control circuit of sound equipment
KR950031624U
(en )
1995-11-22
Tone ringer generating circuit of telephone
KR930018919U
(en )
1993-08-21
Phone mute ringer circuit
KR950034532U
(en )
1995-12-18
Handset of phone with sound effect