NL173440B - METHOD OF SEISMIC EXPLORATION. - Google Patents

METHOD OF SEISMIC EXPLORATION.

Info

Publication number
NL173440B
NL173440B NLAANVRAGE7012785,A NL173440DA NL173440B NL 173440 B NL173440 B NL 173440B NL 173440D A NL173440D A NL 173440DA NL 173440 B NL173440 B NL 173440B
Authority
NL
Netherlands
Prior art keywords
seismic exploration
seismic
exploration
Prior art date
Application number
NLAANVRAGE7012785,A
Other languages
Dutch (nl)
Original Assignee
Texas Instruments 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 NL173440B publication Critical patent/NL173440B/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
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
    • H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix
NLAANVRAGE7012785,A 1952-10-29 METHOD OF SEISMIC EXPLORATION. NL173440B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL319391X 1952-10-29

Publications (1)

Publication Number Publication Date
NL173440B true NL173440B (en)

Family

ID=19783926

Family Applications (2)

Application Number Title Priority Date Filing Date
NL81348D NL81348C (en) 1952-10-29
NLAANVRAGE7012785,A NL173440B (en) 1952-10-29 METHOD OF SEISMIC EXPLORATION.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL81348D NL81348C (en) 1952-10-29

Country Status (6)

Country Link
US (1) US2721295A (en)
CH (1) CH319391A (en)
DE (1) DE931544C (en)
FR (1) FR1085716A (en)
GB (1) GB744713A (en)
NL (2) NL173440B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906921A (en) * 1956-08-23 1959-09-29 Gen Electric Magnetron
US3013180A (en) * 1958-05-01 1961-12-12 Gen Electric Magnetron device and system
US3121822A (en) * 1960-10-28 1964-02-18 Gen Electric Circuits for unimoding crossed field devices
US3176188A (en) * 1960-10-28 1965-03-30 Gen Electric Mixed lines crossed fields oscillator or amplifier
EP0300608A3 (en) * 1987-07-23 1990-07-18 English Electric Valve Company Limited Magnetrons
GB9723478D0 (en) 1997-11-07 1998-01-07 Eev Ltd Magnetrons

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE663509C (en) * 1934-08-21 1938-08-08 Telefunken Gmbh Multiple slotted magnetron tubes
NL107565C (en) * 1941-09-06
US2480462A (en) * 1944-01-07 1949-08-30 Western Electric Co Tunable magnetron
US2418469A (en) * 1944-05-04 1947-04-08 Bell Telephone Labor Inc Tuner for multiresonators
US2496500A (en) * 1945-07-18 1950-02-07 Raytheon Mfg Co Electron discharge device

Also Published As

Publication number Publication date
CH319391A (en) 1957-02-15
DE931544C (en) 1955-08-11
US2721295A (en) 1955-10-18
NL81348C (en)
GB744713A (en) 1956-02-15
FR1085716A (en) 1955-02-07

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