BE486473A - - Google Patents

Info

Publication number: BE486473A
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.)

1947-12-30

Publication of BE486473A publication Critical patent/BE486473A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- 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

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Mobile Radio Communication Systems (AREA)
Interface Circuits In Exchanges (AREA)

BE486473D 1947-12-30 BE486473A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US794482A US2571250A (en)	1947-12-30	1947-12-30	Party line selective signaling system having code call

Publications (1)

Publication Number	Publication Date
BE486473A true BE486473A (de)

Family

ID=25162753

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE486473D BE486473A (de)	1947-12-30

Country Status (4)

Country	Link
US (1)	US2571250A (de)
BE (1)	BE486473A (de)
FR (1)	FR977905A (de)
GB (1)	GB666500A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2707725A (en) *	1952-02-13	1955-05-03	Stromberg Carlson Co	Reverting call system
US2896023A (en) *	1953-08-13	1959-07-21	Gen Telephone Lab Inc	Reverting call telephone system
US3267219A (en) *	1963-02-25	1966-08-16	Webster Electric Co Inc	Paging system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1732186A (en) *		1929-10-15		wicks
US1546113A (en) *	1923-08-27	1925-07-14	Western Electric Co	Telephone system
US1889229A (en) *	1931-01-23	1932-11-29	Associated Electric Lab Inc	Telephone system
US1877883A (en) *	1931-10-19	1932-09-20	Associated Electric Lab Inc	Automatic telephone system
US2137518A (en) *	1937-05-15	1938-11-22	Associated Electric Lab Inc	Telephone system
US2239902A (en) *	1938-10-03	1941-04-29	Associated Electric Lab Inc	Telephone system
US2322966A (en) *	1939-01-11	1943-06-29	Tokheim Oil Tank & Pump Co	Liquid dispenser
GB571994A (en) *	1944-01-22	1945-09-18	Automatic Telephone & Elect	Improvements in or relating to telephone or like systems

0
- BE BE486473D patent/BE486473A/xx unknown
1947
- 1947-12-30 US US794482A patent/US2571250A/en not_active Expired - Lifetime
1948
- 1948-11-15 GB GB29619/48A patent/GB666500A/en not_active Expired
- 1948-12-21 FR FR977905D patent/FR977905A/fr not_active Expired

Also Published As

Publication number	Publication date
GB666500A (en)	1952-02-13
FR977905A (fr)	1951-04-06
US2571250A (en)	1951-10-16

Publication	Publication Date	Title
AT165657B (de)
FR964998A (de)	1950-08-30
AT165716B (de)	1950-04-11
AT166672B (de)	1950-09-11
FR962604A (de)	1950-06-16
AT165884B (de)	1950-05-10
BE474505A (de)	1947-04-30
BE472149A (de)	1947-09-27
BE472071A (de)
BE473401A (de)	1947-06-30
BE465296A (de)
BE467279A (de)
BE458425A (de)
BE470671A (de)
BE422748A (de)
BE471160A (de)
BE471167A (de)	1947-08-13
BE471206A (de)
BE471414A (de)
BE471467A (de)
BE471492A (de)
BE471627A (de)
BE471830A (de)	1947-04-30
BE401708A (de)
BE342691A (de)