JPH0377575U - - Google Patents

Info

Publication number
JPH0377575U
JPH0377575U JP11111790U JP11111790U JPH0377575U JP H0377575 U JPH0377575 U JP H0377575U JP 11111790 U JP11111790 U JP 11111790U JP 11111790 U JP11111790 U JP 11111790U JP H0377575 U JPH0377575 U JP H0377575U
Authority
JP
Japan
Prior art keywords
hook
office line
central office
button telephone
state
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
JP11111790U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0450712Y2 (pl
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 filed Critical
Priority to JP1990111117U priority Critical patent/JPH0450712Y2/ja
Publication of JPH0377575U publication Critical patent/JPH0377575U/ja
Application granted granted Critical
Publication of JPH0450712Y2 publication Critical patent/JPH0450712Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP1990111117U 1990-10-25 1990-10-25 Expired JPH0450712Y2 (pl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990111117U JPH0450712Y2 (pl) 1990-10-25 1990-10-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990111117U JPH0450712Y2 (pl) 1990-10-25 1990-10-25

Publications (2)

Publication Number Publication Date
JPH0377575U true JPH0377575U (pl) 1991-08-05
JPH0450712Y2 JPH0450712Y2 (pl) 1992-11-30

Family

ID=31659614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990111117U Expired JPH0450712Y2 (pl) 1990-10-25 1990-10-25

Country Status (1)

Country Link
JP (1) JPH0450712Y2 (pl)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140352A (en) * 1979-04-20 1980-11-01 Iwatsu Electric Co Ltd Speaker telephone set connecting system
JPS5683167A (en) * 1979-12-12 1981-07-07 Kanda Tsushin Kogyo Kk Line lamp control system for button telephone device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140352A (en) * 1979-04-20 1980-11-01 Iwatsu Electric Co Ltd Speaker telephone set connecting system
JPS5683167A (en) * 1979-12-12 1981-07-07 Kanda Tsushin Kogyo Kk Line lamp control system for button telephone device

Also Published As

Publication number Publication date
JPH0450712Y2 (pl) 1992-11-30

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