NO121906B - - Google Patents

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Publication number
NO121906B
NO121906B NO2172/69A NO217269A NO121906B NO 121906 B NO121906 B NO 121906B NO 2172/69 A NO2172/69 A NO 2172/69A NO 217269 A NO217269 A NO 217269A NO 121906 B NO121906 B NO 121906B
Authority
NO
Norway
Prior art keywords
vitamin
acid
aluminum hydride
reduction
series
Prior art date
Application number
NO2172/69A
Other languages
English (en)
Norwegian (no)
Inventor
N Edstroem
G Hemdal
Original Assignee
Ericsson Telefon Ab L M
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.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NO121906B publication Critical patent/NO121906B/no

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
    • G08C15/12Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division the signals being represented by pulse characteristics in transmission link

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Relay Circuits (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electronic Switches (AREA)
NO2172/69A 1968-05-28 1969-05-27 NO121906B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE07091/68A SE333014B (sv) 1968-05-28 1968-05-28

Publications (1)

Publication Number Publication Date
NO121906B true NO121906B (sv) 1971-04-26

Family

ID=20270393

Family Applications (1)

Application Number Title Priority Date Filing Date
NO2172/69A NO121906B (sv) 1968-05-28 1969-05-27

Country Status (8)

Country Link
US (1) US3575607A (sv)
BE (1) BE733620A (sv)
FR (1) FR2009503A1 (sv)
GB (1) GB1270300A (sv)
NL (1) NL6907442A (sv)
NO (1) NO121906B (sv)
SE (1) SE333014B (sv)
SU (1) SU374875A3 (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376277A (en) * 1980-10-17 1983-03-08 Honeywell Inc. Dynamic contact checking circuit
US4845475A (en) * 1987-11-17 1989-07-04 The Boeing Company Automatic testing of position sensing devices employing stored sensed position
JP2669905B2 (ja) * 1989-09-01 1997-10-29 ファナック株式会社 リレーの溶着検出方法
DE9310446U1 (de) * 1993-03-08 1994-07-14 Landis & Gyr Business Support Ag, Zug Schaltungsanordnung zum Prüfen von Schalter- bzw. Relaiskontakten

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800645A (en) * 1955-01-27 1957-07-23 Westinghouse Air Brake Co Electric circuit integrity checking apparatus
US3452271A (en) * 1967-01-17 1969-06-24 United States Steel Corp Apparatus for testing relays for operability,continuity and leakage

Also Published As

Publication number Publication date
NL6907442A (sv) 1969-12-02
SU374875A3 (sv) 1973-03-20
BE733620A (sv) 1969-11-03
DE1922139A1 (de) 1970-06-18
US3575607A (en) 1971-04-20
DE1922139B2 (de) 1972-06-22
GB1270300A (en) 1972-04-12
SE333014B (sv) 1971-03-01
FR2009503A1 (sv) 1970-02-06

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