NL139609B - CARD READER. - Google Patents

CARD READER.

Info

Publication number
NL139609B
NL139609B NL696913149A NL139609DA NL139609B NL 139609 B NL139609 B NL 139609B NL 696913149 A NL696913149 A NL 696913149A NL 139609D A NL139609D A NL 139609DA NL 139609 B NL139609 B NL 139609B
Authority
NL
Netherlands
Prior art keywords
card reader
reader
card
Prior art date
Application number
NL696913149A
Other languages
Dutch (nl)
Original Assignee
Amp Inc
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.)
Publication of NL139609B publication Critical patent/NL139609B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
NL696913149A 1947-03-27 CARD READER. NL139609B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US737602A US2651686A (en) 1947-03-27 1947-03-27 Traveling wave amplifier

Publications (1)

Publication Number Publication Date
NL139609B true NL139609B (en)

Family

ID=24964534

Family Applications (1)

Application Number Title Priority Date Filing Date
NL696913149A NL139609B (en) 1947-03-27 CARD READER.

Country Status (6)

Country Link
US (1) US2651686A (en)
BE (1) BE482221A (en)
CH (1) CH276533A (en)
ES (1) ES184345A1 (en)
FR (1) FR963932A (en)
NL (1) NL139609B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL151728B (en) * 1949-02-23 Celanese Corp PROCESS FOR THE PREPARATION OF OXYMETHYLENE POLYMERS WITH HIGH IMPACT RESISTANCE AND SHAPED PRODUCTS, MANUFACTURED IN WHOLE OR PART OF THE OXYMETHYLENE POLYMERS OBTAINED BY THIS PROCESS.
US2760111A (en) * 1950-06-28 1956-08-21 Beverly D Kumpfer Magnetron amplifier
GB706909A (en) * 1950-07-27 1954-04-07 M O Valve Co Ltd Improvements in or relating to electrical amplifying devices of the travelling wave kind
US2758242A (en) * 1951-03-13 1956-08-07 Sperry Rand Corp Travelling wave tubes
NL203472A (en) * 1955-01-11
US3005129A (en) * 1957-03-19 1961-10-17 Raytheon Co Magnetron oscillators

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064469A (en) * 1933-10-23 1936-12-15 Rca Corp Device for and method of controlling high frequency currents
US2122538A (en) * 1935-01-22 1938-07-05 American Telephone & Telegraph Wave amplifier
US2153728A (en) * 1936-10-07 1939-04-11 American Telephone & Telegraph Ultra high frequency signaling
US2368031A (en) * 1940-03-15 1945-01-23 Bell Telephone Labor Inc Electron discharge device
US2241976A (en) * 1940-04-25 1941-05-13 Gen Electric High frequency apparatus
NL62817C (en) * 1940-05-04
FR957330A (en) * 1940-05-17 1950-02-18
US2414121A (en) * 1941-01-17 1947-01-14 Bell Telephone Labor Inc Electron device of the magnetron type
US2439401A (en) * 1942-09-10 1948-04-13 Raytheon Mfg Co Magnetron oscillator of the resonant cavity type
US2509419A (en) * 1945-04-09 1950-05-30 Raytheon Mfg Co Amplifier of the magnetron type

Also Published As

Publication number Publication date
US2651686A (en) 1953-09-08
BE482221A (en)
CH276533A (en) 1951-07-15
ES184345A1 (en) 1948-12-01
FR963932A (en) 1950-07-26

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