FR791127A - Improvements to wireless telegraphy broadcasters - Google Patents

Improvements to wireless telegraphy broadcasters

Info

Publication number
FR791127A
FR791127A FR791127DA FR791127A FR 791127 A FR791127 A FR 791127A FR 791127D A FR791127D A FR 791127DA FR 791127 A FR791127 A FR 791127A
Authority
FR
France
Prior art keywords
broadcasters
wireless telegraphy
telegraphy
wireless
telegraphy broadcasters
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)
Inventor
Eugene Marie Fernand Le Desbri
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 filed Critical
Application granted granted Critical
Publication of FR791127A publication Critical patent/FR791127A/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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR791127D 1937-01-22 1934-09-05 Improvements to wireless telegraphy broadcasters Expired FR791127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR48112T 1937-01-22

Publications (1)

Publication Number Publication Date
FR791127A true FR791127A (en) 1935-12-04

Family

ID=8683498

Family Applications (2)

Application Number Title Priority Date Filing Date
FR791127D Expired FR791127A (en) 1937-01-22 1934-09-05 Improvements to wireless telegraphy broadcasters
FR48112D Expired FR48112E (en) 1937-01-22 1937-01-22 Improvements to wireless telegraphy broadcasters

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR48112D Expired FR48112E (en) 1937-01-22 1937-01-22 Improvements to wireless telegraphy broadcasters

Country Status (1)

Country Link
FR (2) FR791127A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE902980C (en) * 1942-07-21 1954-02-01 Zeiss Ikon Ag speaker
US4439644A (en) * 1981-11-24 1984-03-27 Edmund M. Jaskiewicz Loud speaker enclosure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997021520A1 (en) * 1995-12-08 1997-06-19 Norton Company Backing plates for abrasive disks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE902980C (en) * 1942-07-21 1954-02-01 Zeiss Ikon Ag speaker
US4439644A (en) * 1981-11-24 1984-03-27 Edmund M. Jaskiewicz Loud speaker enclosure

Also Published As

Publication number Publication date
FR48112E (en) 1937-10-25

Similar Documents

Publication Publication Date Title
FR797974A (en) Improvements to thermionic cathodes
FR804837A (en) Improvements to radio receivers
FR791663A (en) Improvements to television receivers
FR46154E (en) Television receiver
FR790335A (en) Improvements to radio receivers
FR808820A (en) Improvements to wireless telegraphy transmitters
FR791127A (en) Improvements to wireless telegraphy broadcasters
FR788883A (en) Improvements to radio signaling systems
FR748673A (en) Improvements to wireless telegraphy transmitters
FR799535A (en) Improvements to wireless communication systems
FR724692A (en) Improvements to wireless telephony broadcasters
FR786365A (en) Telegraph receiver
FR43395E (en) Improvements to telegraphy and wireless telephony antennas
FR786200A (en) Improvements made to stencils
FR779829A (en) Improvements to curbs
FR791001A (en) Improvements to magnetron tubes
FR799272A (en) Improvements to radio receivers
FR784698A (en) Improvements to radio receivers
FR786335A (en) Television receiver
FR833396A (en) Improvements to antennas for wireless telegraphy
FR779692A (en) Improvements to rotary screens
FR790300A (en) Improvements to television receivers
FR791256A (en) Improvements to broadcast receivers
FR790670A (en) Improvements to broadcast receivers
FR790772A (en) Improvements to broadcast receivers