AT269513B - Device for protecting a viewing opening - Google Patents
Device for protecting a viewing openingInfo
- Publication number
- AT269513B AT269513B AT119366A AT119366A AT269513B AT 269513 B AT269513 B AT 269513B AT 119366 A AT119366 A AT 119366A AT 119366 A AT119366 A AT 119366A AT 269513 B AT269513 B AT 269513B
- Authority
- AT
- Austria
- Prior art keywords
- protecting
- viewing opening
- viewing
- opening
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR5334A FR1432792A (en) | 1965-02-12 | 1965-02-12 | Device for protecting a surface against dirt and corrosion |
FR19209A FR88044E (en) | 1965-06-02 | 1965-06-02 | Device for protecting a surface against dirt and corrosion |
Publications (1)
Publication Number | Publication Date |
---|---|
AT269513B true AT269513B (en) | 1969-03-25 |
Family
ID=26161999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT119366A AT269513B (en) | 1965-02-12 | 1966-02-10 | Device for protecting a viewing opening |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT269513B (en) |
BE (1) | BE676124A (en) |
ES (1) | ES322909A1 (en) |
GB (1) | GB1138451A (en) |
NL (1) | NL6601759A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0211989A1 (en) * | 1985-08-22 | 1987-03-04 | Albrecht Bäumer KG Spezialmaschinenfabrik | Process and apparatus for estimating the quantity of toric material between calendering rolls |
US5406413A (en) * | 1991-07-30 | 1995-04-11 | Asahi Kogaku Kogyo Kabushiki Kaisha | Lens cover apparatus of optical instrument |
SE514473C2 (en) * | 1999-03-02 | 2001-02-26 | Alfa Laval Agri Ab | Protective device for a teat locator |
WO2024028707A1 (en) * | 2022-08-03 | 2024-02-08 | Georgia-Pacific Gypsum Llc | Apparatuses and systems for shielding an optical sensor, self-cleaning optical sensor assembly, and methods of using the same |
-
1966
- 1966-02-07 BE BE676124D patent/BE676124A/xx unknown
- 1966-02-10 AT AT119366A patent/AT269513B/en active
- 1966-02-11 NL NL6601759A patent/NL6601759A/xx unknown
- 1966-02-11 ES ES0322909A patent/ES322909A1/en not_active Expired
- 1966-02-11 GB GB6246/66A patent/GB1138451A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE676124A (en) | 1966-06-16 |
ES322909A1 (en) | 1966-08-01 |
GB1138451A (en) | 1969-01-01 |
NL6601759A (en) | 1966-08-15 |
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