NL31209C - - Google Patents

Info

Publication number
NL31209C
NL31209C NL31209DA NL31209C NL 31209 C NL31209 C NL 31209C NL 31209D A NL31209D A NL 31209DA NL 31209 C NL31209 C NL 31209C
Authority
NL
Netherlands
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 NL31209C publication Critical patent/NL31209C/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/26—Damping by means acting directly on free portion of diaphragm or cone

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
NL31209D 1929-06-26 NL31209C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE697904X 1929-06-26

Publications (1)

Publication Number Publication Date
NL31209C true NL31209C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=6608052

Family Applications (1)

Application Number Title Priority Date Filing Date
NL31209D NL31209C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1929-06-26

Country Status (2)

Country Link
FR (1) FR697904A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL31209C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
FR697904A (fr) 1931-01-23

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