BE741575A - - Google Patents
Info
- Publication number
- BE741575A BE741575A BE741575DA BE741575A BE 741575 A BE741575 A BE 741575A BE 741575D A BE741575D A BE 741575DA BE 741575 A BE741575 A BE 741575A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691912747 DE1912747C (en) | 1969-03-13 | Mid-infrared lens |
Publications (1)
Publication Number | Publication Date |
---|---|
BE741575A true BE741575A (en) | 1970-04-16 |
Family
ID=5727997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE741575D BE741575A (en) | 1969-03-13 | 1969-11-12 |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE741575A (en) |
CH (1) | CH491395A (en) |
NL (1) | NL6917899A (en) |
-
1969
- 1969-11-12 BE BE741575D patent/BE741575A/xx unknown
- 1969-11-28 NL NL6917899A patent/NL6917899A/xx unknown
- 1969-12-18 CH CH1884369A patent/CH491395A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL6917899A (en) | 1970-09-15 |
CH491395A (en) | 1970-05-31 |
DE1912747B2 (en) | 1972-09-07 |
DE1912747A1 (en) | 1970-10-01 |