NL179757B - ROOF AIR VENT. - Google Patents

ROOF AIR VENT.

Info

Publication number
NL179757B
NL179757B NLAANVRAGE7505814,A NL179757DA NL179757B NL 179757 B NL179757 B NL 179757B NL 179757D A NL179757D A NL 179757DA NL 179757 B NL179757 B NL 179757B
Authority
NL
Netherlands
Prior art keywords
air vent
roof air
roof
vent
air
Prior art date
Application number
NLAANVRAGE7505814,A
Other languages
Dutch (nl)
Original Assignee
Robertson Gal Gmbh
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 NL179757B publication Critical patent/NL179757B/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36Photoelectric screens; Charge-storage screens
    • H01J29/39Charge-storage screens
    • H01J29/43Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36Photoelectric screens; Charge-storage screens
    • H01J29/39Charge-storage screens
NLAANVRAGE7505814,A 1952-07-19 ROOF AIR VENT. NL179757B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1829452A GB773572A (en) 1952-07-19 1952-07-19 Improvements in or relating to target electrodes for electron discharge devices

Publications (1)

Publication Number Publication Date
NL179757B true NL179757B (en)

Family

ID=10110002

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7505814,A NL179757B (en) 1952-07-19 ROOF AIR VENT.

Country Status (4)

Country Link
DE (1) DE948613C (en)
FR (1) FR1081410A (en)
GB (1) GB773572A (en)
NL (1) NL179757B (en)

Also Published As

Publication number Publication date
GB773572A (en) 1957-05-01
DE948613C (en) 1956-09-06
FR1081410A (en) 1954-12-20

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