BE552868A - - Google Patents

Info

Publication number
BE552868A
BE552868A BE552868DA BE552868A BE 552868 A BE552868 A BE 552868A BE 552868D A BE552868D A BE 552868DA BE 552868 A BE552868 A BE 552868A
Authority
BE
Belgium
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.)
Publication of BE552868A publication Critical patent/BE552868A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P33/00—Preparation of steroids
    • C12P33/12—Acting on D ring
    • C12P33/16—Acting at 17 position
    • C12P33/18—Hydroxylating at 17 position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microbiology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
BE552868D 1955-11-24 BE552868A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL343990X 1955-11-24

Publications (1)

Publication Number Publication Date
BE552868A true BE552868A (fr)

Family

ID=19784809

Family Applications (1)

Application Number Title Priority Date Filing Date
BE552868D BE552868A (fr) 1955-11-24

Country Status (6)

Country Link
BE (1) BE552868A (fr)
CH (1) CH343990A (fr)
DE (1) DE1015950B (fr)
FR (1) FR1165545A (fr)
GB (1) GB808539A (fr)
NL (2) NL103749C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225910A (en) * 1961-02-04 1965-12-28 Porta Paolo Della Getter devices with non-evaporated gettering material, for maintaining vacuum in electronic tubes
US3564326A (en) * 1967-06-15 1971-02-16 Tokyo Shibaura Electric Co Image pickup tube

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916648A (en) * 1957-12-05 1959-12-08 Sylvania Electric Prod Electron tube
DK93858C (da) * 1959-03-05 1962-07-09 Philips Nv Getterholder.
US3439210A (en) * 1966-01-03 1969-04-15 Hughes Aircraft Co Thermionic emission cathode having reduced frontal area and enlarged emission area for ion bombardment environment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE707069C (de) * 1935-11-23 1941-06-12 Siemens & Halske Akt Ges Entladungsgefaess mit metallischer Wandung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225910A (en) * 1961-02-04 1965-12-28 Porta Paolo Della Getter devices with non-evaporated gettering material, for maintaining vacuum in electronic tubes
US3564326A (en) * 1967-06-15 1971-02-16 Tokyo Shibaura Electric Co Image pickup tube

Also Published As

Publication number Publication date
DE1015950B (de) 1957-09-19
GB808539A (en) 1959-02-04
NL202321A (fr)
FR1165545A (fr) 1958-10-27
NL103749C (fr)
CH343990A (de) 1960-01-15

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