FR2232889B1 - - Google Patents

Info

Publication number
FR2232889B1
FR2232889B1 FR7419948A FR7419948A FR2232889B1 FR 2232889 B1 FR2232889 B1 FR 2232889B1 FR 7419948 A FR7419948 A FR 7419948A FR 7419948 A FR7419948 A FR 7419948A FR 2232889 B1 FR2232889 B1 FR 2232889B1
Authority
FR
France
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
FR7419948A
Other languages
French (fr)
Other versions
FR2232889A1 (ja
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
Publication of FR2232889A1 publication Critical patent/FR2232889A1/fr
Application granted granted Critical
Publication of FR2232889B1 publication Critical patent/FR2232889B1/fr
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)
FR7419948A 1973-06-08 1974-06-10 Expired FR2232889B1 (ja)

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 (2)

Publication Number Publication Date
FR2232889A1 FR2232889A1 (ja) 1975-01-03
FR2232889B1 true FR2232889B1 (ja) 1977-09-30

Family

ID=10258849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7419948A Expired FR2232889B1 (ja) 1973-06-08 1974-06-10

Country Status (8)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS53109914A (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
IT1011936B (it) 1977-02-10
JPS5431765B2 (ja) 1979-10-09
GB1411910A (en) 1975-10-29
DE2427584A1 (de) 1975-01-02
SE7407345L (ja) 1974-12-09
BE816008A (fr) 1974-12-06
JPS5034103A (ja) 1975-04-02
CA1001787A (en) 1976-12-14
FR2232889A1 (ja) 1975-01-03

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Legal Events

Date Code Title Description
ST Notification of lapse