NL40077C - - Google Patents

Info

Publication number: NL40077C
Authority: NL; Netherlands

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.)

1934-08-17

Publication of NL40077C publication Critical patent/NL40077C/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)
Interface Circuits In Exchanges (AREA)

NL40077D 1934-08-17 NL40077C (cg-RX-API-DMAC7.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB2379434A GB439752A (en)	1934-08-17	1934-08-17	Improvements in telephone repeaters

Publications (1)

Publication Number	Publication Date
NL40077C true NL40077C (cg-RX-API-DMAC7.html)

Family

ID=10201426

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL40077D NL40077C (cg-RX-API-DMAC7.html)	1934-08-17

Country Status (4)

Country	Link
BE (1)	BE404976A (cg-RX-API-DMAC7.html)
FR (1)	FR781474A (cg-RX-API-DMAC7.html)
GB (1)	GB439752A (cg-RX-API-DMAC7.html)
NL (1)	NL40077C (cg-RX-API-DMAC7.html)

0
- FR FR781474D patent/FR781474A/fr not_active Expired
- NL NL40077D patent/NL40077C/xx active
- BE BE404976D patent/BE404976A/xx unknown
1934
- 1934-08-17 GB GB2379434A patent/GB439752A/en not_active Expired

Also Published As

Publication number	Publication date
BE404976A (cg-RX-API-DMAC7.html)
FR781474A (cg-RX-API-DMAC7.html)	1935-05-16
GB439752A (en)	1935-12-13

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