Rudolf Ruehl: Difference between revisions
From Leica Wiki (English)
Jump to navigationJump to search
mNo edit summary |
|||
| Line 2: | Line 2: | ||
*1966 MAR 28 - PHOTO LENS WITH A SHORT FOCAL LENGTH AND LARGER BACK INTERCEPTOR FOCAL LENGTH (7 / 5) | *1966 MAR 28 - PHOTO LENS WITH A SHORT FOCAL LENGTH AND LARGER BACK INTERCEPTOR FOCAL LENGTH (7 / 5) | ||
*1972 MAR 22 - WIDE ANGLE LENS (8 / 8) | |||
Revision as of 23:00, 3 March 2012
E. Leitz Photographic Patents by Rudolf Ruehl
- 1966 MAR 28 - PHOTO LENS WITH A SHORT FOCAL LENGTH AND LARGER BACK INTERCEPTOR FOCAL LENGTH (7 / 5)
- 1972 MAR 22 - WIDE ANGLE LENS (8 / 8)
