PL95245B1 - - Google Patents

Download PDF

Info

Publication number
PL95245B1
PL95245B1 PL17283774A PL17283774A PL95245B1 PL 95245 B1 PL95245 B1 PL 95245B1 PL 17283774 A PL17283774 A PL 17283774A PL 17283774 A PL17283774 A PL 17283774A PL 95245 B1 PL95245 B1 PL 95245B1
Authority
PL
Poland
Prior art keywords
resistor
input
capacitor
signal
switch
Prior art date
Application number
PL17283774A
Other languages
English (en)
Polish (pl)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of PL95245B1 publication Critical patent/PL95245B1/pl

Links

Landscapes

  • Devices For Supply Of Signal Current (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
PL17283774A 1973-07-18 1974-07-18 PL95245B1 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUBU000677 HU169656B (cs) 1973-07-18 1973-07-18

Publications (1)

Publication Number Publication Date
PL95245B1 true PL95245B1 (cs) 1977-09-30

Family

ID=10993914

Family Applications (1)

Application Number Title Priority Date Filing Date
PL17283774A PL95245B1 (cs) 1973-07-18 1974-07-18

Country Status (5)

Country Link
CS (1) CS186269B2 (cs)
DD (1) DD116962A5 (cs)
HU (1) HU169656B (cs)
PL (1) PL95245B1 (cs)
SU (1) SU566536A3 (cs)

Also Published As

Publication number Publication date
DD116962A5 (cs) 1975-12-12
HU169656B (cs) 1977-02-28
SU566536A3 (ru) 1977-07-25
CS186269B2 (en) 1978-11-30

Similar Documents

Publication Publication Date Title
US4188507A (en) Remotely controlled telephone answering apparatus
US4056689A (en) Telephone subscriber line circuit
US4056691A (en) Telephone subscriber line circuit
US3461241A (en) Recorder controlled automatic dialing and message reporting system
CA1044832A (en) Ring detector circuit for centrally located answering and recording equipment
US2791633A (en) Remote dictation system
US3688043A (en) Timer circuit of an automatic telephone answering apparatus
GB1345023A (en) Automatic telephone answering apparatus
PL95245B1 (cs)
US2743315A (en) Control circuits for telephone answering and recording devices
GB2213682A (en) Telephone answering machine
US2724015A (en) Telephone answering and recording device
AU604383B2 (en) Apparatus for connecting and disconnecting a ringing signal to a called subscriber
US4556761A (en) Automatic telephone answering apparatus
US4105866A (en) Telephone answering machine busy signal detection devices with switching means
CA1044830A (en) Centrally located automatic answering and recording equipment
US3033941A (en) Means for altering telephone operation
US4224476A (en) Multiparty subscriber loop carrier systems
US3482045A (en) Automatic telephone alarm with voice message transmitted upon line polarity reversal
US2539565A (en) Apparatus for delivering and receiving telephone messages
US2848541A (en) Tone controlled telephone answering device
US3410959A (en) Called loop polarity reversing threewire telephone recorder coupler
US3887773A (en) Automatic telephone answering apparatus
US2769033A (en) Telephone message recording and message repeat back systems
US2854512A (en) Close coupled telephone answering and message recording device