GB252674A - Improvements in impulse transmitters for use in telephone or like systems - Google Patents

Improvements in impulse transmitters for use in telephone or like systems

Info

Publication number
GB252674A
GB252674A GB5618/26A GB561826A GB252674A GB 252674 A GB252674 A GB 252674A GB 5618/26 A GB5618/26 A GB 5618/26A GB 561826 A GB561826 A GB 561826A GB 252674 A GB252674 A GB 252674A
Authority
GB
United Kingdom
Prior art keywords
turned
ring
dial
tongue
tool
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
GB5618/26A
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.)
Automatic Telephone Manufacturing Co Ltd
Original Assignee
Automatic Telephone Manufacturing 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 Automatic Telephone Manufacturing Co Ltd filed Critical Automatic Telephone Manufacturing Co Ltd
Publication of GB252674A publication Critical patent/GB252674A/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
    • 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)
  • Credit Cards Or The Like (AREA)
GB5618/26A 1925-06-01 1926-02-27 Improvements in impulse transmitters for use in telephone or like systems Expired GB252674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34081A US1719992A (en) 1925-06-01 1925-06-01 Calling device

Publications (1)

Publication Number Publication Date
GB252674A true GB252674A (en) 1927-05-27

Family

ID=21874178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5618/26A Expired GB252674A (en) 1925-06-01 1926-02-27 Improvements in impulse transmitters for use in telephone or like systems

Country Status (3)

Country Link
US (1) US1719992A (enExample)
BE (1) BE343768A (enExample)
GB (1) GB252674A (enExample)

Also Published As

Publication number Publication date
US1719992A (en) 1929-07-09
BE343768A (enExample)

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