[go: up one dir, main page]

FR828879A - Additional device for sound recording device - Google Patents

Additional device for sound recording device

Info

Publication number
FR828879A
FR828879A FR828879DA FR828879A FR 828879 A FR828879 A FR 828879A FR 828879D A FR828879D A FR 828879DA FR 828879 A FR828879 A FR 828879A
Authority
FR
France
Prior art keywords
sound recording
additional
recording device
additional device
sound
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.)
AEG AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
AEG AG
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 Allgemeine Elektricitaets Gesellschaft, AEG AG filed Critical Allgemeine Elektricitaets Gesellschaft
Application granted granted Critical
Publication of FR828879A publication Critical patent/FR828879A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR828879D 1936-11-07 1937-11-08 Additional device for sound recording device Expired FR828879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE509046X 1936-11-07

Publications (1)

Publication Number Publication Date
FR828879A true FR828879A (en) 1938-06-01

Family

ID=6547119

Family Applications (1)

Application Number Title Priority Date Filing Date
FR828879D Expired FR828879A (en) 1936-11-07 1937-11-08 Additional device for sound recording device

Country Status (2)

Country Link
FR (1) FR828879A (en)
GB (1) GB509046A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843660A (en) * 1951-03-27 1958-07-15 Western Union Telegraph Co Facsimile telegraph system

Also Published As

Publication number Publication date
GB509046A (en) 1939-07-10

Similar Documents

Publication Publication Date Title
FR804770A (en) Sound reproduction device
CH201674A (en) Acoustic device.
FR804389A (en) Sound reproduction device
BE425453A (en) Device for recording or reproducing silent or sound films
FR864375A (en) Device for the representation of obstacles
FR828879A (en) Additional device for sound recording device
FR827497A (en) Braking device for stranding machines
FR823005A (en) Amplifier device for photocathodes
FR824509A (en) Shaper device for hats
FR779642A (en) Further development for electro-magnetic recording device
FR817698A (en) Stereoscopic device
FR781416A (en) Classification device for phonograph records
FR801969A (en) Recording device
FR830623A (en) Projection device for narrow sound films
FR805709A (en) Device for so-called permanent waves
FR812313A (en) Device for playing dice
FR772571A (en) Sound reproducing device for speaking machines or similar machines
FR758035A (en) Device for sound recording
FR782504A (en) Adjustment device for phonographic reproducers
FR729328A (en) Sound cinematography device
FR803859A (en) Mixing device for sound film
FR810158A (en) Mower device
FR755352A (en) Sound collecting device
FR817324A (en) Device for recording acoustic oscillations
FR761679A (en) Sound reproduction device