GB476917A - Improvements in or relating to impulse transmitters for telephone systems - Google Patents

Improvements in or relating to impulse transmitters for telephone systems

Info

Publication number
GB476917A
GB476917A GB7717/37A GB771737A GB476917A GB 476917 A GB476917 A GB 476917A GB 7717/37 A GB7717/37 A GB 7717/37A GB 771737 A GB771737 A GB 771737A GB 476917 A GB476917 A GB 476917A
Authority
GB
United Kingdom
Prior art keywords
members
relating
impulse
press
telephone systems
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
GB7717/37A
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.)
Ronag A G
Original Assignee
Ronag A G
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 Ronag A G filed Critical Ronag A G
Publication of GB476917A publication Critical patent/GB476917A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
GB7717/37A 1936-05-22 1937-03-16 Improvements in or relating to impulse transmitters for telephone systems Expired GB476917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT476917X 1936-05-22

Publications (1)

Publication Number Publication Date
GB476917A true GB476917A (en) 1937-12-17

Family

ID=3674856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7717/37A Expired GB476917A (en) 1936-05-22 1937-03-16 Improvements in or relating to impulse transmitters for telephone systems

Country Status (4)

Country Link
US (1) US2161232A (enrdf_load_stackoverflow)
FR (1) FR827309A (enrdf_load_stackoverflow)
GB (1) GB476917A (enrdf_load_stackoverflow)
NL (1) NL43675C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR827309A (fr) 1938-04-25
NL43675C (enrdf_load_stackoverflow)
US2161232A (en) 1939-06-06

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