FR848805A - Telecommunications systems - Google Patents
Telecommunications systemsInfo
- Publication number
- FR848805A FR848805A FR848805DA FR848805A FR 848805 A FR848805 A FR 848805A FR 848805D A FR848805D A FR 848805DA FR 848805 A FR848805 A FR 848805A
- Authority
- FR
- France
- Prior art keywords
- telecommunications systems
- telecommunications
- 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
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/005—Splitting up mixtures of fatty acids into their constituents
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB232245X | 1938-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR848805A true FR848805A (en) | 1939-11-07 |
Family
ID=10192160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR848805D Expired FR848805A (en) | 1938-01-25 | 1939-01-12 | Telecommunications systems |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH232245A (en) |
DE (1) | DE716128C (en) |
FR (1) | FR848805A (en) |
GB (1) | GB510012A (en) |
NL (1) | NL54049C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE464785A (en) * | 1939-07-26 | |||
GB688094A (en) * | 1950-04-28 | 1953-02-25 | Waygood Otis Ltd | Elevator call measuring means |
US2908758A (en) * | 1952-09-11 | 1959-10-13 | Gen Telephone Lab Inc | Toll ticketing telephone systems |
DE1171027B (en) * | 1960-08-02 | 1964-05-27 | Int Standard Electric Corp | Circuit arrangement for the acquisition and recording of charge impulses and for the storage of types of authorization for telephone subscriber connections in telephone switching systems |
DE1217461B (en) * | 1964-04-23 | 1966-05-26 | Siemens Ag | Circuit arrangement for telephone systems with dialer operation and automatic charge printing |
-
0
- NL NL54049D patent/NL54049C/xx active
-
1938
- 1938-01-25 GB GB2408/38A patent/GB510012A/en not_active Expired
-
1939
- 1939-01-12 FR FR848805D patent/FR848805A/en not_active Expired
- 1939-01-23 CH CH232245D patent/CH232245A/en unknown
- 1939-01-24 DE DEI63578D patent/DE716128C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE716128C (en) | 1942-01-14 |
CH232245A (en) | 1944-05-15 |
NL54049C (en) | |
GB510012A (en) | 1939-07-25 |
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