NL90903C - - Google Patents

Info

Publication number: NL90903C
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.)

1953-06-18

Publication of NL90903C publication Critical patent/NL90903C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Keying Circuit Devices (AREA)

NL90903D 1953-06-18 NL90903C (Direct)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH933931X		1953-06-18

Publications (1)

Publication Number	Publication Date
NL90903C true NL90903C (Direct)

Family

ID=4548965

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7811881,A NL187588B (nl)	1953-06-18		Graafmachine met blokkeerbare pendelas.
NL90903D NL90903C (Direct)	1953-06-18

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7811881,A NL187588B (nl)	1953-06-18		Graafmachine met blokkeerbare pendelas.

Country Status (3)

Country	Link
CH (1)	CH314507A (Direct)
DE (1)	DE933931C (Direct)
NL (2)	NL90903C (Direct)

0
- NL NLAANVRAGE7811881,A patent/NL187588B/xx unknown
- NL NL90903D patent/NL90903C/xx active
1953
- 1953-06-18 CH CH314507D patent/CH314507A/de unknown
1954
- 1954-04-04 DE DEA20046A patent/DE933931C/de not_active Expired

Also Published As

Publication number	Publication date
CH314507A (de)	1956-06-15
NL187588B (nl)
DE933931C (de)	1955-10-06

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