IT987771B - KEY TELEPHONE SYSTEM USING A TIME DIVISION AND SPACE DIVISION CONTROL - Google Patents

KEY TELEPHONE SYSTEM USING A TIME DIVISION AND SPACE DIVISION CONTROL

Info

Publication number
IT987771B
IT987771B IT2436573A IT2436573A IT987771B IT 987771 B IT987771 B IT 987771B IT 2436573 A IT2436573 A IT 2436573A IT 2436573 A IT2436573 A IT 2436573A IT 987771 B IT987771 B IT 987771B
Authority
IT
Italy
Prior art keywords
telephone system
key telephone
time division
division
control
Prior art date
Application number
IT2436573A
Other languages
Italian (it)
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 CA142,792A external-priority patent/CA1018270A/en
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of IT987771B publication Critical patent/IT987771B/en

Links

IT2436573A 1972-05-23 1973-05-22 KEY TELEPHONE SYSTEM USING A TIME DIVISION AND SPACE DIVISION CONTROL IT987771B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA142,792A CA1018270A (en) 1972-05-23 1972-05-23 Key telephone system using time division and space division control

Publications (1)

Publication Number Publication Date
IT987771B true IT987771B (en) 1975-03-20

Family

ID=4093341

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2436573A IT987771B (en) 1972-05-23 1973-05-22 KEY TELEPHONE SYSTEM USING A TIME DIVISION AND SPACE DIVISION CONTROL

Country Status (3)

Country Link
AR (1) AR199668A1 (en)
ES (1) ES415035A1 (en)
IT (1) IT987771B (en)

Also Published As

Publication number Publication date
ES415035A1 (en) 1976-05-16
AR199668A1 (en) 1974-09-23

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