BR7606759A - TELEPHONE CIRCUIT TO ALLOW THE OPTIONAL USE OF A RETENTION BUTTON - Google Patents

TELEPHONE CIRCUIT TO ALLOW THE OPTIONAL USE OF A RETENTION BUTTON

Info

Publication number
BR7606759A
BR7606759A BR7606759A BR7606759A BR7606759A BR 7606759 A BR7606759 A BR 7606759A BR 7606759 A BR7606759 A BR 7606759A BR 7606759 A BR7606759 A BR 7606759A BR 7606759 A BR7606759 A BR 7606759A
Authority
BR
Brazil
Prior art keywords
allow
telephone circuit
optional use
retention button
retention
Prior art date
Application number
BR7606759A
Other languages
Portuguese (pt)
Inventor
R Herlacher
Original Assignee
Int Standard Electric Corp
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 US05/622,287 external-priority patent/US4004107A/en
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of BR7606759A publication Critical patent/BR7606759A/en

Links

BR7606759A 1975-10-10 1976-10-08 TELEPHONE CIRCUIT TO ALLOW THE OPTIONAL USE OF A RETENTION BUTTON BR7606759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/622,287 US4004107A (en) 1975-02-11 1975-10-10 Telephone circuit to eliminate use of a hold button

Publications (1)

Publication Number Publication Date
BR7606759A true BR7606759A (en) 1977-08-30

Family

ID=24493635

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7606759A BR7606759A (en) 1975-10-10 1976-10-08 TELEPHONE CIRCUIT TO ALLOW THE OPTIONAL USE OF A RETENTION BUTTON

Country Status (2)

Country Link
BR (1) BR7606759A (en)
CA (1) CA1054276A (en)

Also Published As

Publication number Publication date
CA1054276A (en) 1979-05-08

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