BE425353A - - Google Patents

Info

Publication number
BE425353A
BE425353A BE425353DA BE425353A BE 425353 A BE425353 A BE 425353A BE 425353D A BE425353D A BE 425353DA BE 425353 A BE425353 A BE 425353A
Authority
BE
Belgium
Application number
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.)
Publication of BE425353A publication Critical patent/BE425353A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/007—Monitoring arrangements; Testing arrangements for public address systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
BE425353D 1936-12-23 BE425353A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL91693D DE711021C (en) 1936-12-23 1936-12-23 Public address system

Publications (1)

Publication Number Publication Date
BE425353A true BE425353A (en)

Family

ID=7287337

Family Applications (1)

Application Number Title Priority Date Filing Date
BE425353D BE425353A (en) 1936-12-23

Country Status (2)

Country Link
BE (1) BE425353A (en)
DE (1) DE711021C (en)

Also Published As

Publication number Publication date
DE711021C (en) 1941-10-02

Similar Documents

Publication Publication Date Title
BE415900A (en)
BE425353A (en)
BE390588A (en)
BE396481A (en)
BE406332A (en)
BE413309A (en)
BE413384A (en)
BE413397A (en)
BE413408A (en)
BE413706A (en)
BE413759A (en)
BE413893A (en)
BE414076A (en)
BE414157A (en)
BE414357A (en)
BE414370A (en)
BE414373A (en)
BE414430A (en)
BE414472A (en)
BE414511A (en)
BE414571A (en)
BE414636A (en)
BE414645A (en)
BE414653A (en)
BE414686A (en)