DE87586C - - Google Patents
Info
- Publication number
- DE87586C DE87586C DENDAT87586D DE87586DA DE87586C DE 87586 C DE87586 C DE 87586C DE NDAT87586 D DENDAT87586 D DE NDAT87586D DE 87586D A DE87586D A DE 87586DA DE 87586 C DE87586 C DE 87586C
- Authority
- DE
- Germany
- Prior art keywords
- ring
- another
- frame
- head piece
- way
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
- G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Toys (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE87586C true DE87586C (cs) |
Family
ID=359548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT87586D Active DE87586C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE87586C (cs) |
-
0
- DE DENDAT87586D patent/DE87586C/de active Active
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