FR955570A - - Google Patents

Info

Publication number
FR955570A
FR955570A FR955570DA FR955570A FR 955570 A FR955570 A FR 955570A FR 955570D A FR955570D A FR 955570DA FR 955570 A FR955570 A FR 955570A
Authority
FR
France
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
Other languages
French (fr)
Publication date
Application granted granted Critical
Publication of FR955570A publication Critical patent/FR955570A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR955570D Expired FR955570A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
FR955570A true FR955570A (cg-RX-API-DMAC7.html) 1950-01-17

Family

ID=1558273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR955570D Expired FR955570A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
FR (1) FR955570A (cg-RX-API-DMAC7.html)

Similar Documents

Publication Publication Date Title
FR955213A (cg-RX-API-DMAC7.html)
FR955587A (cg-RX-API-DMAC7.html)
FR955258A (cg-RX-API-DMAC7.html)
AT165408B (cg-RX-API-DMAC7.html)
AT195820B (cg-RX-API-DMAC7.html)
FR955970A (cg-RX-API-DMAC7.html)
BE494643A (cg-RX-API-DMAC7.html)
BE494262A (cg-RX-API-DMAC7.html)
BE494021A (cg-RX-API-DMAC7.html)
BE493420A (cg-RX-API-DMAC7.html)
BE495440A (cg-RX-API-DMAC7.html)
BE493362A (cg-RX-API-DMAC7.html)
BE501956A (cg-RX-API-DMAC7.html)
BE493329A (cg-RX-API-DMAC7.html)
BE500257A (cg-RX-API-DMAC7.html)
BE495456A (cg-RX-API-DMAC7.html)
BE495443A (cg-RX-API-DMAC7.html)
BE494655A (cg-RX-API-DMAC7.html)
BE486021A (cg-RX-API-DMAC7.html)
BE471217A (cg-RX-API-DMAC7.html)
BE495522A (cg-RX-API-DMAC7.html)
BE442233A (cg-RX-API-DMAC7.html)
BE495391A (cg-RX-API-DMAC7.html)
BE474353A (cg-RX-API-DMAC7.html)
BE365921A (cg-RX-API-DMAC7.html)