BE517356A - - Google Patents

Info

Publication number: BE517356A
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.)

1952-02-04

Publication of BE517356A publication Critical patent/BE517356A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Exchange Systems With Centralized Control (AREA)

BE517356D 1952-02-04 BE517356A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE727618X		1952-02-04

Publications (1)

Publication Number	Publication Date
BE517356A true BE517356A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Family

ID=20316167

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE517356D BE517356A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)	1952-02-04

Country Status (3)

Country	Link
BE (1)	BE517356A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
DE (1)	DE953266C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
GB (1)	GB727618A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

0
- BE BE517356D patent/BE517356A/xx unknown
1953
- 1953-02-03 DE DET7351A patent/DE953266C/de not_active Expired
- 1953-02-04 GB GB3181/53A patent/GB727618A/en not_active Expired

Also Published As

Publication number	Publication date
GB727618A (en)	1955-04-06
DE953266C (de)	1956-11-29

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