GB386265A - Improvements in and relating to the manufacture of seamless conical or like diaphragms of paper or similar material - Google Patents

Improvements in and relating to the manufacture of seamless conical or like diaphragms of paper or similar material

Info

Publication number
GB386265A
GB386265A GB21914/32A GB2191432A GB386265A GB 386265 A GB386265 A GB 386265A GB 21914/32 A GB21914/32 A GB 21914/32A GB 2191432 A GB2191432 A GB 2191432A GB 386265 A GB386265 A GB 386265A
Authority
GB
United Kingdom
Prior art keywords
conical
diaphragms
paper
similar material
relating
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
GB21914/32A
Other languages
English (en)
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.)
FEIN MASCHB GmbH
Original Assignee
FEIN MASCHB GmbH
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 FEIN MASCHB GmbH filed Critical FEIN MASCHB GmbH
Publication of GB386265A publication Critical patent/GB386265A/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)
  • Diaphragms For Electromechanical Transducers (AREA)
GB21914/32A 1931-08-06 1932-08-04 Improvements in and relating to the manufacture of seamless conical or like diaphragms of paper or similar material Expired GB386265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE386265X 1931-08-06

Publications (1)

Publication Number Publication Date
GB386265A true GB386265A (en) 1933-01-12

Family

ID=6370959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21914/32A Expired GB386265A (en) 1931-08-06 1932-08-04 Improvements in and relating to the manufacture of seamless conical or like diaphragms of paper or similar material

Country Status (2)

Country Link
GB (1) GB386265A (enExample)
NL (1) NL36535C (enExample)

Also Published As

Publication number Publication date
NL36535C (enExample)

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