JPS57104354A - Button telephone set - Google Patents

Button telephone set

Info

Publication number
JPS57104354A
JPS57104354A JP18096080A JP18096080A JPS57104354A JP S57104354 A JPS57104354 A JP S57104354A JP 18096080 A JP18096080 A JP 18096080A JP 18096080 A JP18096080 A JP 18096080A JP S57104354 A JPS57104354 A JP S57104354A
Authority
JP
Japan
Prior art keywords
callout
operated
signal source
button telephone
extension
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
JP18096080A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0158720B2 (enrdf_load_stackoverflow
Inventor
Jun Kodama
Kazuaki Tange
Fumio Sugiyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP18096080A priority Critical patent/JPS57104354A/ja
Publication of JPS57104354A publication Critical patent/JPS57104354A/ja
Publication of JPH0158720B2 publication Critical patent/JPH0158720B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP18096080A 1980-12-20 1980-12-20 Button telephone set Granted JPS57104354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18096080A JPS57104354A (en) 1980-12-20 1980-12-20 Button telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18096080A JPS57104354A (en) 1980-12-20 1980-12-20 Button telephone set

Publications (2)

Publication Number Publication Date
JPS57104354A true JPS57104354A (en) 1982-06-29
JPH0158720B2 JPH0158720B2 (enrdf_load_stackoverflow) 1989-12-13

Family

ID=16092284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18096080A Granted JPS57104354A (en) 1980-12-20 1980-12-20 Button telephone set

Country Status (1)

Country Link
JP (1) JPS57104354A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102246011A (zh) * 2008-12-10 2011-11-16 布丽塔有限责任公司 传导性测量装置和液体处理装置
US8171802B2 (en) 2008-03-28 2012-05-08 Brita Gmbh Method for measuring the volume flow of electrically conductive liquids through a vessel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023088672A1 (en) 2021-11-17 2023-05-25 Sma Solar Technology Ag Filter-choke, production method thereof and electrical device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092608A (enrdf_load_stackoverflow) * 1973-12-14 1975-07-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092608A (enrdf_load_stackoverflow) * 1973-12-14 1975-07-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8171802B2 (en) 2008-03-28 2012-05-08 Brita Gmbh Method for measuring the volume flow of electrically conductive liquids through a vessel
CN102246011A (zh) * 2008-12-10 2011-11-16 布丽塔有限责任公司 传导性测量装置和液体处理装置

Also Published As

Publication number Publication date
JPH0158720B2 (enrdf_load_stackoverflow) 1989-12-13

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