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
Links
Classifications
-
- 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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/36—Photoelectric screens; Charge-storage screens
- H01J29/39—Charge-storage screens
- H01J29/43—Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope
-
- 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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/36—Photoelectric screens; Charge-storage screens
- H01J29/39—Charge-storage screens
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) |
-
0
- NL NLAANVRAGE7505814,A patent/NL179757B/en unknown
-
1952
- 1952-07-19 GB GB1829452A patent/GB773572A/en not_active Expired
-
1953
- 1953-07-04 DE DEE7493A patent/DE948613C/en not_active Expired
- 1953-07-17 FR FR1081410D patent/FR1081410A/en not_active Expired
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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