JPS53149702A - Circuit for calling interphone - Google Patents

Circuit for calling interphone

Info

Publication number
JPS53149702A
JPS53149702A JP2399478A JP2399478A JPS53149702A JP S53149702 A JPS53149702 A JP S53149702A JP 2399478 A JP2399478 A JP 2399478A JP 2399478 A JP2399478 A JP 2399478A JP S53149702 A JPS53149702 A JP S53149702A
Authority
JP
Japan
Prior art keywords
circuit
interphone
calling
calling interphone
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.)
Granted
Application number
JP2399478A
Other languages
Japanese (ja)
Other versions
JPS5649359B2 (en
Inventor
Shigemasa Ichikawa
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.)
Aiphone Co Ltd
Original Assignee
Aiphone Co Ltd
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 Aiphone Co Ltd filed Critical Aiphone Co Ltd
Priority to JP2399478A priority Critical patent/JPS53149702A/en
Publication of JPS53149702A publication Critical patent/JPS53149702A/en
Publication of JPS5649359B2 publication Critical patent/JPS5649359B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP2399478A 1978-03-02 1978-03-02 Circuit for calling interphone Granted JPS53149702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2399478A JPS53149702A (en) 1978-03-02 1978-03-02 Circuit for calling interphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2399478A JPS53149702A (en) 1978-03-02 1978-03-02 Circuit for calling interphone

Publications (2)

Publication Number Publication Date
JPS53149702A true JPS53149702A (en) 1978-12-27
JPS5649359B2 JPS5649359B2 (en) 1981-11-20

Family

ID=12126121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2399478A Granted JPS53149702A (en) 1978-03-02 1978-03-02 Circuit for calling interphone

Country Status (1)

Country Link
JP (1) JPS53149702A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63174755U (en) * 1986-10-07 1988-11-14

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814773U (en) * 1971-07-05 1973-02-19
JPS4874825A (en) * 1971-12-30 1973-10-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814773U (en) * 1971-07-05 1973-02-19
JPS4874825A (en) * 1971-12-30 1973-10-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63174755U (en) * 1986-10-07 1988-11-14

Also Published As

Publication number Publication date
JPS5649359B2 (en) 1981-11-20

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