DK130493B - Data input device with keyboard. - Google Patents

Data input device with keyboard.

Info

Publication number
DK130493B
DK130493B DK447871AA DK447871A DK130493B DK 130493 B DK130493 B DK 130493B DK 447871A A DK447871A A DK 447871AA DK 447871 A DK447871 A DK 447871A DK 130493 B DK130493 B DK 130493B
Authority
DK
Denmark
Prior art keywords
keyboard
input device
data input
data
input
Prior art date
Application number
DK447871AA
Other languages
Danish (da)
Other versions
DK130493C (en
Inventor
H T Ackerman
C W Kessler
Original Assignee
Ncr Co
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 Ncr Co filed Critical Ncr Co
Publication of DK130493B publication Critical patent/DK130493B/en
Application granted granted Critical
Publication of DK130493C publication Critical patent/DK130493C/da

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
DK447871AA 1970-09-14 1971-09-13 Data input device with keyboard. DK130493B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7179270A 1970-09-14 1970-09-14

Publications (2)

Publication Number Publication Date
DK130493B true DK130493B (en) 1975-02-24
DK130493C DK130493C (en) 1975-09-15

Family

ID=22103632

Family Applications (1)

Application Number Title Priority Date Filing Date
DK447871AA DK130493B (en) 1970-09-14 1971-09-13 Data input device with keyboard.

Country Status (3)

Country Link
US (1) US3716685A (en)
JP (1) JPS524134B1 (en)
DK (1) DK130493B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL159524B (en) * 1975-04-02 1979-02-15 Hazemeijer Bv ELECTRICAL SWITCH, SPARK GAP OR THE LIKE FITTED WITH AN ARC EXTINGUISHING DEVICE WITH SPIRAL OR SCREW-CURVED ARC FOOT GUIDES.
US4171474A (en) * 1977-05-27 1979-10-16 Electric Power Research Institute, Inc. Current interrupter electrode configuration
FR2455183A2 (en) * 1979-04-24 1980-11-21 Aerospatiale DEPLOYABLE DIVERGENT PROPELLER NOZZLE
EP0125553B1 (en) * 1983-05-09 1988-09-14 Mitsubishi Denki Kabushiki Kaisha Circuit breaker of spiral arc type
TW293130B (en) * 1994-03-10 1996-12-11 Mitsubishi Electric Corp
FR2719152B1 (en) * 1994-04-22 1996-05-24 Gec Alsthom T & D Sa Medium or high voltage circuit breaker.
US6465780B1 (en) * 1999-03-31 2002-10-15 The Regents Of The University Of California Filters for cathodic arc plasmas

Also Published As

Publication number Publication date
JPS524134B1 (en) 1977-02-01
DK130493C (en) 1975-09-15
US3716685A (en) 1973-02-13

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