JPS5385104A - Privacy circuit for button telephone set - Google Patents

Privacy circuit for button telephone set

Info

Publication number
JPS5385104A
JPS5385104A JP23377A JP23377A JPS5385104A JP S5385104 A JPS5385104 A JP S5385104A JP 23377 A JP23377 A JP 23377A JP 23377 A JP23377 A JP 23377A JP S5385104 A JPS5385104 A JP S5385104A
Authority
JP
Japan
Prior art keywords
telephone set
button telephone
privacy circuit
privacy
circuit
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.)
Pending
Application number
JP23377A
Other languages
Japanese (ja)
Inventor
Masahiro Sarutani
Wataru Gotou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nakayo Telecommunications Inc
Original Assignee
Nakayo Telecommunications Inc
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 Nakayo Telecommunications Inc filed Critical Nakayo Telecommunications Inc
Priority to JP23377A priority Critical patent/JPS5385104A/en
Publication of JPS5385104A publication Critical patent/JPS5385104A/en
Pending legal-status Critical Current

Links

JP23377A 1977-01-06 1977-01-06 Privacy circuit for button telephone set Pending JPS5385104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23377A JPS5385104A (en) 1977-01-06 1977-01-06 Privacy circuit for button telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23377A JPS5385104A (en) 1977-01-06 1977-01-06 Privacy circuit for button telephone set

Publications (1)

Publication Number Publication Date
JPS5385104A true JPS5385104A (en) 1978-07-27

Family

ID=11468239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23377A Pending JPS5385104A (en) 1977-01-06 1977-01-06 Privacy circuit for button telephone set

Country Status (1)

Country Link
JP (1) JPS5385104A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213706A (en) * 1975-07-23 1977-02-02 Kanda Tsushin Kogyo Kk Key telephone system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213706A (en) * 1975-07-23 1977-02-02 Kanda Tsushin Kogyo Kk Key telephone system

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