FR923088A - Improvements to sound producing and receiving devices - Google Patents

Improvements to sound producing and receiving devices

Info

Publication number
FR923088A
FR923088A FR923088DA FR923088A FR 923088 A FR923088 A FR 923088A FR 923088D A FR923088D A FR 923088DA FR 923088 A FR923088 A FR 923088A
Authority
FR
France
Prior art keywords
receiving devices
sound producing
sound
producing
devices
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.)
Submarine Signal Co
Original Assignee
Submarine Signal Co
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 Submarine Signal Co filed Critical Submarine Signal Co
Application granted granted Critical
Publication of FR923088A publication Critical patent/FR923088A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR923088D 1945-03-10 1946-03-02 Improvements to sound producing and receiving devices Expired FR923088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US923088XA 1945-03-10 1945-03-10

Publications (1)

Publication Number Publication Date
FR923088A true FR923088A (en) 1947-06-26

Family

ID=22232629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR923088D Expired FR923088A (en) 1945-03-10 1946-03-02 Improvements to sound producing and receiving devices

Country Status (1)

Country Link
FR (1) FR923088A (en)

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