DK161289C - ELECTRONIC HOLDING CIRCUIT FOR PHONE DEVICES - Google Patents

ELECTRONIC HOLDING CIRCUIT FOR PHONE DEVICES

Info

Publication number
DK161289C
DK161289C DK229678A DK229678A DK161289C DK 161289 C DK161289 C DK 161289C DK 229678 A DK229678 A DK 229678A DK 229678 A DK229678 A DK 229678A DK 161289 C DK161289 C DK 161289C
Authority
DK
Denmark
Prior art keywords
holding circuit
phone devices
electronic holding
electronic
phone
Prior art date
Application number
DK229678A
Other languages
Danish (da)
Other versions
DK229678A (en
DK161289B (en
Inventor
Nils Jackie Sundvall
Original Assignee
Ericsson Telefon Ab L M
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 by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of DK229678A publication Critical patent/DK229678A/en
Publication of DK161289B publication Critical patent/DK161289B/en
Application granted granted Critical
Publication of DK161289C publication Critical patent/DK161289C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/62—Constructional arrangements
DK229678A 1977-05-25 1978-05-24 ELECTRONIC HOLDING CIRCUIT FOR PHONE DEVICES DK161289C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7706147A SE405057B (en) 1977-05-25 1977-05-25 ELECTRONIC HALL CIRCUIT FOR A TELEPHONE DEVICE
SE7706147 1977-05-25

Publications (3)

Publication Number Publication Date
DK229678A DK229678A (en) 1978-11-26
DK161289B DK161289B (en) 1991-06-17
DK161289C true DK161289C (en) 1991-12-30

Family

ID=20331426

Family Applications (1)

Application Number Title Priority Date Filing Date
DK229678A DK161289C (en) 1977-05-25 1978-05-24 ELECTRONIC HOLDING CIRCUIT FOR PHONE DEVICES

Country Status (3)

Country Link
DK (1) DK161289C (en)
NO (1) NO140521C (en)
SE (1) SE405057B (en)

Also Published As

Publication number Publication date
NO140521C (en) 1979-09-12
NO781820L (en) 1978-11-28
DK229678A (en) 1978-11-26
DK161289B (en) 1991-06-17
NO140521B (en) 1979-06-05
SE405057B (en) 1978-11-13

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