FI40640C - Hardware for automatic level adjustment of telephone sets - Google Patents

Hardware for automatic level adjustment of telephone sets

Info

Publication number
FI40640C
FI40640C FI40640DA FI40640C FI 40640 C FI40640 C FI 40640C FI 40640D A FI40640D A FI 40640DA FI 40640 C FI40640 C FI 40640C
Authority
FI
Finland
Prior art keywords
hardware
level adjustment
telephone sets
automatic level
automatic
Prior art date
Application number
Other languages
Finnish (fi)
Inventor
Boeryd Arne Goesta Torild
Johansson Per Inge
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
Application granted granted Critical
Publication of FI40640C publication Critical patent/FI40640C/en

Links

FI40640D 1961-09-19 1961-09-19 Hardware for automatic level adjustment of telephone sets FI40640C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI40640T 1961-09-19

Publications (1)

Publication Number Publication Date
FI40640C true FI40640C (en) 1969-04-10

Family

ID=36902645

Family Applications (1)

Application Number Title Priority Date Filing Date
FI40640D FI40640C (en) 1961-09-19 1961-09-19 Hardware for automatic level adjustment of telephone sets

Country Status (1)

Country Link
FI (1) FI40640C (en)

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