BE401674A - - Google Patents

Info

Publication number: BE401674A
Authority: BE; Belgium

Application number

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.)

1933-03-01

Publication of BE401674A publication Critical patent/BE401674A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

BE401674D 1933-03-01 BE401674A (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB6227/33A GB415767A (en)	1933-03-01	1933-03-01	Improvements in alternating current transmission systems such as telephone systems incorporating echo suppressors

Publications (1)

Publication Number	Publication Date
BE401674A true BE401674A (no)

Family

ID=9810720

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE401674D BE401674A (no)	1933-03-01

Country Status (6)

Country	Link
US (1)	US1992774A (no)
BE (1)	BE401674A (no)
DE (1)	DE672795C (no)
FR (1)	FR769401A (no)
GB (2)	GB416372A (no)
NL (1)	NL39810C (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE882420C (de) *	1938-04-12	1953-07-09	Siemens Ag	Schaltungsanordnung fuer Rueckkopplungssperren in Lautfernsprechanlagen
US2164344A (en) *	1938-04-28	1939-07-04	Bell Telephone Labor Inc	Signal transmission system
GB561405A (en) *	1942-11-14	1944-05-18	Automatic Telephone & Elect	Improvements in or relating to telecommunication systems
US2511468A (en) *	1945-01-15	1950-06-13	Telephone Mfg Co Ltd	Electrical control network
DE849572C (de) *	1948-12-09	1952-09-15	Rudolf Wagner	Schaltungsanordnung zur Steuerung des UEbertragungsgrades von Fernmeldeanlagen
DE842503C (de) *	1948-12-09	1952-06-26	Rudolf Wagner	Schaltungsanordnung zur Steuerung des UEbertragungsgrades von Fernmeldeanlagen
US2949579A (en) *	1957-12-27	1960-08-16	Mc Graw Edison Co	Transistor amplifier with a.v.c.

0
- NL NL39810D patent/NL39810C/xx active
- BE BE401674D patent/BE401674A/xx unknown
1933
- 1933-03-01 GB GB24310/34A patent/GB416372A/en not_active Expired
- 1933-03-01 GB GB6227/33A patent/GB415767A/en not_active Expired
1934
- 1934-02-19 US US711922A patent/US1992774A/en not_active Expired - Lifetime
- 1934-02-25 DE DEG87523D patent/DE672795C/de not_active Expired
- 1934-02-27 FR FR769401D patent/FR769401A/fr not_active Expired

Also Published As

Publication number	Publication date
GB416372A (en)	1934-09-03
US1992774A (en)	1935-02-26
GB415767A (en)	1934-09-03
DE672795C (de)	1939-03-10
NL39810C (no)
FR769401A (fr)	1934-08-25

Publication	Publication Date	Title
FR741583A (no)	1933-02-14
FR742179A (no)	1933-02-28
BE369770A (no)
BE375476A (no)
BE378380A (no)
BE389595A (no)
BE391463A (no)
BE393645A (no)
BE393793A (no)
BE393878A (no)
BE393996A (no)
BE394022A (no)	1933-02-28
BE394067A (no)	1933-03-31
BE394072A (no)
BE394093A (no)
BE394103A (no)
BE394207A (no)	1933-03-31
BE394212A (no)
BE394300A (no)	1933-03-31
BE394347A (no)
BE394392A (no)
BE394410A (no)
BE394468A (no)
BE394486A (no)
BE394610A (no)	1933-03-31