GB411287A - Impulse transmitting apparatus for use in automatic telephone installations - Google Patents

Impulse transmitting apparatus for use in automatic telephone installations

Info

Publication number
GB411287A
GB411287A GB16050/33A GB1605033A GB411287A GB 411287 A GB411287 A GB 411287A GB 16050/33 A GB16050/33 A GB 16050/33A GB 1605033 A GB1605033 A GB 1605033A GB 411287 A GB411287 A GB 411287A
Authority
GB
United Kingdom
Prior art keywords
spindle
springs
finger
drum
box
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
GB16050/33A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB411287A publication Critical patent/GB411287A/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
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Structure Of Telephone Exchanges (AREA)
GB16050/33A 1932-06-04 1933-06-02 Impulse transmitting apparatus for use in automatic telephone installations Expired GB411287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR411287X 1932-06-04

Publications (1)

Publication Number Publication Date
GB411287A true GB411287A (en) 1934-06-07

Family

ID=8897690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16050/33A Expired GB411287A (en) 1932-06-04 1933-06-02 Impulse transmitting apparatus for use in automatic telephone installations

Country Status (4)

Country Link
US (1) US2043526A (enExample)
BE (1) BE396504A (enExample)
DE (1) DE625268C (enExample)
GB (1) GB411287A (enExample)

Also Published As

Publication number Publication date
BE396504A (enExample)
DE625268C (de) 1936-02-06
US2043526A (en) 1936-06-09

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