GB1264565A - - Google Patents

Info

Publication number
GB1264565A
GB1264565A GB1264565DA GB1264565A GB 1264565 A GB1264565 A GB 1264565A GB 1264565D A GB1264565D A GB 1264565DA GB 1264565 A GB1264565 A GB 1264565A
Authority
GB
United Kingdom
Prior art keywords
announcement
transistor
relay
capacitor
line
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
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
Priority claimed from JP44038087A external-priority patent/JPS4815563B1/ja
Application filed filed Critical
Publication of GB1264565A publication Critical patent/GB1264565A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • H04M1/6515—Recording arrangements for recording a message from the calling party using magnetic tape

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
GB1264565D 1969-05-19 1970-05-15 Expired GB1264565A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP44038087A JPS4815563B1 (enrdf_load_stackoverflow) 1969-05-19 1969-05-19
JP6034969 1969-06-27

Publications (1)

Publication Number Publication Date
GB1264565A true GB1264565A (enrdf_load_stackoverflow) 1972-02-23

Family

ID=26377277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1264565D Expired GB1264565A (enrdf_load_stackoverflow) 1969-05-19 1970-05-15

Country Status (2)

Country Link
CA (1) CA939092A (enrdf_load_stackoverflow)
GB (1) GB1264565A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CA939092A (en) 1973-12-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee