GB1411910A - Push button telephone instruments - Google Patents

Push button telephone instruments

Info

Publication number
GB1411910A
GB1411910A GB2739273A GB2739273A GB1411910A GB 1411910 A GB1411910 A GB 1411910A GB 2739273 A GB2739273 A GB 2739273A GB 2739273 A GB2739273 A GB 2739273A GB 1411910 A GB1411910 A GB 1411910A
Authority
GB
United Kingdom
Prior art keywords
latch
handset
push button
contact
hook
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.)
Expired
Application number
GB2739273A
Other languages
English (en)
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.)
Pye Electronic Products Ltd
Original Assignee
Pye 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 Pye Ltd filed Critical Pye Ltd
Priority to GB2739273A priority Critical patent/GB1411910A/en
Priority to SE7407345A priority patent/SE7407345L/
Priority to BE145157A priority patent/BE816008A/xx
Priority to CA201,891A priority patent/CA1001787A/en
Priority to IT6880574A priority patent/IT1011936B/it
Priority to DE19742427584 priority patent/DE2427584A1/de
Priority to JP6551974A priority patent/JPS5431765B2/ja
Priority to FR7419948A priority patent/FR2232889B1/fr
Publication of GB1411910A publication Critical patent/GB1411910A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
GB2739273A 1973-06-08 1973-06-08 Push button telephone instruments Expired GB1411910A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB2739273A GB1411910A (en) 1973-06-08 1973-06-08 Push button telephone instruments
SE7407345A SE7407345L (enrdf_load_stackoverflow) 1973-06-08 1974-06-05
BE145157A BE816008A (fr) 1973-06-08 1974-06-06 Appareil telephonique a boutons-poussoirs
CA201,891A CA1001787A (en) 1973-06-08 1974-06-07 Telephone instruments
IT6880574A IT1011936B (it) 1973-06-08 1974-06-07 Apparecchio telefonico a tastiera
DE19742427584 DE2427584A1 (de) 1973-06-08 1974-06-07 Tastaturfernsprecher
JP6551974A JPS5431765B2 (enrdf_load_stackoverflow) 1973-06-08 1974-06-08
FR7419948A FR2232889B1 (enrdf_load_stackoverflow) 1973-06-08 1974-06-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2739273A GB1411910A (en) 1973-06-08 1973-06-08 Push button telephone instruments

Publications (1)

Publication Number Publication Date
GB1411910A true GB1411910A (en) 1975-10-29

Family

ID=10258849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2739273A Expired GB1411910A (en) 1973-06-08 1973-06-08 Push button telephone instruments

Country Status (8)

Country Link
JP (1) JPS5431765B2 (enrdf_load_stackoverflow)
BE (1) BE816008A (enrdf_load_stackoverflow)
CA (1) CA1001787A (enrdf_load_stackoverflow)
DE (1) DE2427584A1 (enrdf_load_stackoverflow)
FR (1) FR2232889B1 (enrdf_load_stackoverflow)
GB (1) GB1411910A (enrdf_load_stackoverflow)
IT (1) IT1011936B (enrdf_load_stackoverflow)
SE (1) SE7407345L (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53109914A (en) * 1977-01-29 1978-09-26 Kureha Chem Ind Co Ltd Preparation of anti-tumor polysaccharides
JPS53109915A (en) * 1977-01-29 1978-09-26 Kureha Chem Ind Co Ltd Preparation of anti-tumor polysaccharides
JPS53109922A (en) * 1977-01-29 1978-09-26 Kureha Chem Ind Co Ltd Preparation of anti-tumor polysaccharides
DE3037947C2 (de) * 1980-10-08 1983-01-05 Krone Gmbh, 1000 Berlin Taste zum Wählen bei aufgelegtem Handapparat mittels einer Tastatur und zum Lauthören

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818558A (en) * 1954-06-17 1957-12-31 Bell Telephone Labor Inc Key pulsing circuit
US3614331A (en) * 1968-09-30 1971-10-19 Mkh Inc Keyboard pulse generator including a locking plate for use in telephone dialing

Also Published As

Publication number Publication date
BE816008A (fr) 1974-12-06
FR2232889B1 (enrdf_load_stackoverflow) 1977-09-30
FR2232889A1 (enrdf_load_stackoverflow) 1975-01-03
IT1011936B (it) 1977-02-10
JPS5034103A (enrdf_load_stackoverflow) 1975-04-02
DE2427584A1 (de) 1975-01-02
JPS5431765B2 (enrdf_load_stackoverflow) 1979-10-09
CA1001787A (en) 1976-12-14
SE7407345L (enrdf_load_stackoverflow) 1974-12-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee