FR799859A - Improvements to reproducers for phonographs - Google Patents

Improvements to reproducers for phonographs

Info

Publication number
FR799859A
FR799859A FR799859DA FR799859A FR 799859 A FR799859 A FR 799859A FR 799859D A FR799859D A FR 799859DA FR 799859 A FR799859 A FR 799859A
Authority
FR
France
Prior art keywords
reproducers
phonographs
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.)
Dictaphone Corp
Original Assignee
Dictaphone 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 Dictaphone Corp filed Critical Dictaphone Corp
Application granted granted Critical
Publication of FR799859A publication Critical patent/FR799859A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
FR799859D 1935-04-15 1935-12-24 Improvements to reproducers for phonographs Expired FR799859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16437A US2061475A (en) 1935-04-15 1935-04-15 Reproducer for phonographs

Publications (1)

Publication Number Publication Date
FR799859A true FR799859A (en) 1936-06-22

Family

ID=21777126

Family Applications (1)

Application Number Title Priority Date Filing Date
FR799859D Expired FR799859A (en) 1935-04-15 1935-12-24 Improvements to reproducers for phonographs

Country Status (4)

Country Link
US (1) US2061475A (en)
DE (1) DE645515C (en)
FR (1) FR799859A (en)
GB (1) GB452748A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505124A (en) * 1950-04-25 Valved stethoscope with logarith
US2541164A (en) * 1946-07-01 1951-02-13 Edison Inc Thomas A Valved selective sound control device

Also Published As

Publication number Publication date
US2061475A (en) 1936-11-17
DE645515C (en) 1937-05-28
GB452748A (en) 1936-08-28

Similar Documents

Publication Publication Date Title
FR795131A (en) Reproducer for phonographs
FR799859A (en) Improvements to reproducers for phonographs
FR770577A (en) Record for phonograph
FR749720A (en) Album for phonograph records
FR834906A (en) Improvements to recording mechanisms for railways
FR799925A (en) Improvements to phonographs
FR810806A (en) Improvements to vehicle tracks
FR46652E (en) Improvements to phonographs
FR46653E (en) Improvements to phonographs
FR46651E (en) Improvements to phonographs
FR45806E (en) Improvements to phonographs
FR781851A (en) Improvements to phonographs
FR47617E (en) Improvements to concentric conductors
FR803246A (en) Phonograph cabinet
FR780981A (en) Records for phonographs
FR814763A (en) Improvements to concentric conductors
FR791899A (en) Chassis for harvester-binder
FR802837A (en) Loudspeaker enhancements
FR774574A (en) Improvements to phonograph records
FR757870A (en) Recorder for phonograph records
FR44013E (en) Recorder for phonograph records
FR718413A (en) Style for phonographic reproducer
FR790876A (en) Improvements to sound reproducers
FR833886A (en) Repeater for phonographs
FR49469E (en) Repeater for phonographs