A protective casing for optical instruments, particularly a weatherproof casing with a casing shell (2), a casing axis A--A, a front wall (3) and a backwall (4) located on each end of the casing shell, and a casing support (9) located on the underside, which is attached to a stationary base (12). With...http://www.google.com/patents/US5214245?utm_source=gb-gplus-sharePatent US5214245 - Protective casing for optical instruments
