NL25659C - - Google Patents

Info

Publication number
NL25659C
NL25659C NL25659DA NL25659C NL 25659 C NL25659 C NL 25659C NL 25659D A NL25659D A NL 25659DA NL 25659 C NL25659 C NL 25659C
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 NL25659C publication Critical patent/NL25659C/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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
NL25659D 1927-12-30 NL25659C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1765276X 1927-12-30

Publications (1)

Publication Number Publication Date
NL25659C true NL25659C (enrdf_load_stackoverflow)

Family

ID=19873065

Family Applications (1)

Application Number Title Priority Date Filing Date
NL25659D NL25659C (enrdf_load_stackoverflow) 1927-12-30

Country Status (3)

Country Link
US (1) US1765276A (enrdf_load_stackoverflow)
GB (1) GB201782A (enrdf_load_stackoverflow)
NL (1) NL25659C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
US1765276A (en) 1930-06-17
GB201782A (en) 1923-08-09

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