FR2269253A1 - Magnetic drum recorder for dialling codes - uses stepping-motor with circumferential tracks with common starting datum - Google Patents
Magnetic drum recorder for dialling codes - uses stepping-motor with circumferential tracks with common starting datumInfo
- Publication number
- FR2269253A1 FR2269253A1 FR7414719A FR7414719A FR2269253A1 FR 2269253 A1 FR2269253 A1 FR 2269253A1 FR 7414719 A FR7414719 A FR 7414719A FR 7414719 A FR7414719 A FR 7414719A FR 2269253 A1 FR2269253 A1 FR 2269253A1
- Authority
- FR
- France
- Prior art keywords
- drum
- motor
- codes
- magnetic drum
- datum
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
- H04M1/276—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using magnetic recording, e.g. on tape
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7414719A FR2269253A1 (en) | 1974-04-26 | 1974-04-26 | Magnetic drum recorder for dialling codes - uses stepping-motor with circumferential tracks with common starting datum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7414719A FR2269253A1 (en) | 1974-04-26 | 1974-04-26 | Magnetic drum recorder for dialling codes - uses stepping-motor with circumferential tracks with common starting datum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2269253A1 true FR2269253A1 (en) | 1975-11-21 |
| FR2269253B3 FR2269253B3 (fr) | 1977-03-04 |
Family
ID=9138225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7414719A Granted FR2269253A1 (en) | 1974-04-26 | 1974-04-26 | Magnetic drum recorder for dialling codes - uses stepping-motor with circumferential tracks with common starting datum |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2269253A1 (fr) |
-
1974
- 1974-04-26 FR FR7414719A patent/FR2269253A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2269253B3 (fr) | 1977-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |