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GB167243A - Improvements in gramophones - Google Patents

Improvements in gramophones

Info

Publication number
GB167243A
GB167243A GB1189620A GB1189620A GB167243A GB 167243 A GB167243 A GB 167243A GB 1189620 A GB1189620 A GB 1189620A GB 1189620 A GB1189620 A GB 1189620A GB 167243 A GB167243 A GB 167243A
Authority
GB
United Kingdom
Prior art keywords
gramophones
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
GB1189620A
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
Priority to GB1189620A priority Critical patent/GB167243A/en
Publication of GB167243A publication Critical patent/GB167243A/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
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
GB1189620A 1920-04-29 1920-04-29 Improvements in gramophones Expired GB167243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1189620A GB167243A (en) 1920-04-29 1920-04-29 Improvements in gramophones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1189620A GB167243A (en) 1920-04-29 1920-04-29 Improvements in gramophones

Publications (1)

Publication Number Publication Date
GB167243A true GB167243A (en) 1921-07-29

Family

ID=9994633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1189620A Expired GB167243A (en) 1920-04-29 1920-04-29 Improvements in gramophones

Country Status (1)

Country Link
GB (1) GB167243A (en)

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