FR616738A - Loud speaker - Google Patents

Loud speaker

Info

Publication number
FR616738A
FR616738A FR616738DA FR616738A FR 616738 A FR616738 A FR 616738A FR 616738D A FR616738D A FR 616738DA FR 616738 A FR616738 A FR 616738A
Authority
FR
France
Prior art keywords
loud speaker
loud
speaker
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
Other languages
French (fr)
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.)
HOPKINS CORP
Original Assignee
HOPKINS CORP
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 HOPKINS CORP filed Critical HOPKINS CORP
Application granted granted Critical
Publication of FR616738A publication Critical patent/FR616738A/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)
FR616738D 1926-02-11 1926-05-27 Loud speaker Expired FR616738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87491A US1763049A (en) 1926-02-11 1926-02-11 Loud-speaker

Publications (1)

Publication Number Publication Date
FR616738A true FR616738A (en) 1927-02-07

Family

ID=22205504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR616738D Expired FR616738A (en) 1926-02-11 1926-05-27 Loud speaker

Country Status (3)

Country Link
US (1) US1763049A (en)
FR (1) FR616738A (en)
GB (1) GB265908A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910546A (en) * 1954-02-24 1959-10-27 Carl A Swanson Loud speaker assembly
US3114429A (en) * 1961-01-16 1963-12-17 Hoffman Electronics Corp Loudspeaker
US3291251A (en) * 1966-03-14 1966-12-13 Stanley A Strzelecki Sr Divided panel board for hi-fi speaker systems

Also Published As

Publication number Publication date
GB265908A (en) 1927-07-13
US1763049A (en) 1930-06-10

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