FR708970A - Call device or assembly for telephone systems - Google Patents
Call device or assembly for telephone systemsInfo
- Publication number
- FR708970A FR708970A FR708970DA FR708970A FR 708970 A FR708970 A FR 708970A FR 708970D A FR708970D A FR 708970DA FR 708970 A FR708970 A FR 708970A
- Authority
- FR
- France
- Prior art keywords
- assembly
- call device
- telephone systems
- telephone
- systems
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
- H04M11/022—Paging systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/006—Call diverting means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE376226X | 1930-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR708970A true FR708970A (en) | 1931-08-01 |
Family
ID=6344218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR708970D Expired FR708970A (en) | 1930-01-08 | 1931-01-08 | Call device or assembly for telephone systems |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR708970A (en) |
GB (1) | GB376226A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE762166C (en) * | 1937-06-22 | 1953-03-09 | Normalzeit G M B H | Circuit arrangement for telephone systems |
DE767836C (en) * | 1934-10-23 | 1953-11-23 | Mix & Genest Ag | Circuit arrangement for telephone extension systems with dialer operation |
FR2753029A1 (en) * | 1996-08-28 | 1998-03-06 | Antoine Philipion | Automatic call transfer device for private telephone exchange |
-
1930
- 1930-12-29 GB GB39108/30A patent/GB376226A/en not_active Expired
-
1931
- 1931-01-08 FR FR708970D patent/FR708970A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE767836C (en) * | 1934-10-23 | 1953-11-23 | Mix & Genest Ag | Circuit arrangement for telephone extension systems with dialer operation |
DE762166C (en) * | 1937-06-22 | 1953-03-09 | Normalzeit G M B H | Circuit arrangement for telephone systems |
FR2753029A1 (en) * | 1996-08-28 | 1998-03-06 | Antoine Philipion | Automatic call transfer device for private telephone exchange |
Also Published As
Publication number | Publication date |
---|---|
GB376226A (en) | 1932-07-07 |
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