GB477967A - Improvements in telephonic arrangements applicable to acoustic frequency amplifiers - Google Patents

Improvements in telephonic arrangements applicable to acoustic frequency amplifiers

Info

Publication number
GB477967A
GB477967A GB9664/36A GB966436A GB477967A GB 477967 A GB477967 A GB 477967A GB 9664/36 A GB9664/36 A GB 9664/36A GB 966436 A GB966436 A GB 966436A GB 477967 A GB477967 A GB 477967A
Authority
GB
United Kingdom
Prior art keywords
telephonic
acoustic frequency
frequency amplifiers
arrangements applicable
arrangements
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
GB9664/36A
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 GB477967A publication Critical patent/GB477967A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
GB9664/36A 1936-03-23 1936-04-01 Improvements in telephonic arrangements applicable to acoustic frequency amplifiers Expired GB477967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR815434T 1936-03-23

Publications (1)

Publication Number Publication Date
GB477967A true GB477967A (en) 1938-01-06

Family

ID=9267247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9664/36A Expired GB477967A (en) 1936-03-23 1936-04-01 Improvements in telephonic arrangements applicable to acoustic frequency amplifiers

Country Status (3)

Country Link
BE (1) BE414653A (enrdf_load_stackoverflow)
FR (2) FR788456A (enrdf_load_stackoverflow)
GB (1) GB477967A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR815434A (fr) 1937-07-12
FR788456A (fr) 1935-10-10
BE414653A (enrdf_load_stackoverflow)

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