GB672490A - Improvements in or relating to a telephone instrument having a dialling switch - Google Patents

Improvements in or relating to a telephone instrument having a dialling switch

Info

Publication number
GB672490A
GB672490A GB15797/50A GB1579750A GB672490A GB 672490 A GB672490 A GB 672490A GB 15797/50 A GB15797/50 A GB 15797/50A GB 1579750 A GB1579750 A GB 1579750A GB 672490 A GB672490 A GB 672490A
Authority
GB
United Kingdom
Prior art keywords
operating member
relating
june
finger
degrees
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
GB15797/50A
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB672490A publication Critical patent/GB672490A/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
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
GB15797/50A 1949-06-23 1950-06-23 Improvements in or relating to a telephone instrument having a dialling switch Expired GB672490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE282227X 1949-06-23

Publications (1)

Publication Number Publication Date
GB672490A true GB672490A (en) 1952-05-21

Family

ID=6039935

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15797/50A Expired GB672490A (en) 1949-06-23 1950-06-23 Improvements in or relating to a telephone instrument having a dialling switch

Country Status (5)

Country Link
US (1) US2888521A (en:Method)
BE (1) BE496430A (en:Method)
CH (1) CH282227A (en:Method)
GB (1) GB672490A (en:Method)
NL (1) NL81651C (en:Method)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293367A (en) * 1963-08-27 1966-12-20 Loehr John Binary switching intercommunicating telephone system
US3295342A (en) * 1964-08-21 1967-01-03 Berwyn E Etter Locking device
US4199666A (en) * 1977-07-25 1980-04-22 Davis Howard S Straight line telephone dialer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB366408A (en) * 1930-06-18 1932-02-04 Siemens Ag Improvements relating to impulse transmitters used in telephone systems
US2502440A (en) * 1947-01-21 1950-04-04 Int Standard Electric Corp Variable impulse transmitter
US2635230A (en) * 1950-11-13 1953-04-14 Bell Telephone Labor Inc Linear dial call transmitter

Also Published As

Publication number Publication date
BE496430A (en:Method)
US2888521A (en) 1959-05-26
CH282227A (de) 1952-04-15
NL81651C (en:Method)

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