CH182116A - Apparecchio per la registrazione elettromagnetica di suoni e per la loro riproduzione. - Google Patents
Apparecchio per la registrazione elettromagnetica di suoni e per la loro riproduzione.Info
- Publication number
- CH182116A CH182116A CH182116DA CH182116A CH 182116 A CH182116 A CH 182116A CH 182116D A CH182116D A CH 182116DA CH 182116 A CH182116 A CH 182116A
- Authority
- CH
- Switzerland
- Prior art keywords
- sounds
- reproduction
- electromagnetic recording
- electromagnetic
- recording
- Prior art date
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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT182116X | 1933-08-07 | ||
| IT445343X | 1934-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH182116A true CH182116A (it) | 1936-01-31 |
Family
ID=31995795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH182116D CH182116A (it) | 1933-08-07 | 1934-08-04 | Apparecchio per la registrazione elettromagnetica di suoni e per la loro riproduzione. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2053760A (fr) |
| CH (1) | CH182116A (fr) |
| FR (1) | FR778053A (fr) |
| GB (1) | GB445343A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2572157A (en) * | 1947-12-31 | 1951-10-23 | Air King Products Co Inc | Combination radio-wire recorder |
| US2745904A (en) * | 1948-02-28 | 1956-05-15 | Int Electronics Co | Magnetic recording machine |
-
1934
- 1934-07-31 US US737718A patent/US2053760A/en not_active Expired - Lifetime
- 1934-08-04 CH CH182116D patent/CH182116A/it unknown
- 1934-08-07 GB GB22908/34A patent/GB445343A/en not_active Expired
- 1934-08-07 FR FR778053D patent/FR778053A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR778053A (fr) | 1935-03-08 |
| US2053760A (en) | 1936-09-08 |
| GB445343A (en) | 1936-04-07 |
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