GB166785A - Improvements in sound boxes for gramophones - Google Patents

Improvements in sound boxes for gramophones

Info

Publication number
GB166785A
GB166785A GB1429320A GB1429320A GB166785A GB 166785 A GB166785 A GB 166785A GB 1429320 A GB1429320 A GB 1429320A GB 1429320 A GB1429320 A GB 1429320A GB 166785 A GB166785 A GB 166785A
Authority
GB
United Kingdom
Prior art keywords
gramophones
sound boxes
boxes
sound
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
GB1429320A
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.)
HENRY BROOKER CHARLES
Original Assignee
HENRY BROOKER CHARLES
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 HENRY BROOKER CHARLES filed Critical HENRY BROOKER CHARLES
Priority to GB1429320A priority Critical patent/GB166785A/en
Publication of GB166785A publication Critical patent/GB166785A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
GB1429320A 1920-05-25 1920-05-25 Improvements in sound boxes for gramophones Expired GB166785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1429320A GB166785A (en) 1920-05-25 1920-05-25 Improvements in sound boxes for gramophones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1429320A GB166785A (en) 1920-05-25 1920-05-25 Improvements in sound boxes for gramophones

Publications (1)

Publication Number Publication Date
GB166785A true GB166785A (en) 1921-07-28

Family

ID=10038545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1429320A Expired GB166785A (en) 1920-05-25 1920-05-25 Improvements in sound boxes for gramophones

Country Status (1)

Country Link
GB (1) GB166785A (en)

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