FR499857A - Micro-oscillation transmitting mechanism - Google Patents

Micro-oscillation transmitting mechanism

Info

Publication number
FR499857A
FR499857A FR499857A FR499857DA FR499857A FR 499857 A FR499857 A FR 499857A FR 499857 A FR499857 A FR 499857A FR 499857D A FR499857D A FR 499857DA FR 499857 A FR499857 A FR 499857A
Authority
FR
France
Prior art keywords
micro
transmitting mechanism
oscillation transmitting
oscillation
transmitting
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
FR499857A
Other languages
French (fr)
Inventor
Birger Meidell
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
Application granted granted Critical
Publication of FR499857A publication Critical patent/FR499857A/en
Expired legal-status Critical Current

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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

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)
FR499857A 1917-03-27 1919-05-20 Micro-oscillation transmitting mechanism Expired FR499857A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO499857X 1917-03-27

Publications (1)

Publication Number Publication Date
FR499857A true FR499857A (en) 1920-02-25

Family

ID=1534826

Family Applications (1)

Application Number Title Priority Date Filing Date
FR499857A Expired FR499857A (en) 1917-03-27 1919-05-20 Micro-oscillation transmitting mechanism

Country Status (1)

Country Link
FR (1) FR499857A (en)

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