NL553C - Sound box for speaking machines - Google Patents

Sound box for speaking machines

Info

Publication number
NL553C
NL553C NL658A NL658A NL553C NL 553 C NL553 C NL 553C NL 658 A NL658 A NL 658A NL 658 A NL658 A NL 658A NL 553 C NL553 C NL 553C
Authority
NL
Netherlands
Prior art keywords
sound box
speaking machines
speaking
machines
sound
Prior art date
Application number
NL658A
Other languages
Dutch (nl)
Original Assignee
Lumiere Louis
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 Lumiere Louis filed Critical Lumiere Louis
Application granted granted Critical
Publication of NL553C publication Critical patent/NL553C/en

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
    • H04R7/16—Mounting or tensioning of diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
  • Telephone Set Structure (AREA)
NL658A 1911-07-07 1912-07-03 Sound box for speaking machines NL553C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR443172T 1911-07-07

Publications (1)

Publication Number Publication Date
NL553C true NL553C (en) 1915-03-01

Family

ID=1484274

Family Applications (1)

Application Number Title Priority Date Filing Date
NL658A NL553C (en) 1911-07-07 1912-07-03 Sound box for speaking machines

Country Status (4)

Country Link
AT (1) AT63874B (en)
FR (1) FR443172A (en)
GB (1) GB191215530A (en)
NL (1) NL553C (en)

Also Published As

Publication number Publication date
AT63874B (en) 1914-03-10
FR443172A (en) 1912-09-18
GB191215530A (en) 1912-11-21

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