DIN ISO 2768-1:1991 General tolerances; tolerances for linear and angular dimensions without individual tolerance indications; identical with ISO 2768-1:1989
DIN 58766:2017 history
2017DIN 58766:2017-02 Production in optical engineering - Connection size for block for manufacturing of ophthalmic lenses - Diameter 43 mm
2017DIN 58766:2017 Production in optical engineering - Connection size for block for manufacturing of ophthalmic lenses - Diameter 43 mm
1998DIN 58766:1998 Production in optical engineering - Block diameter 43 mm for manufacturing of ophtalmic lenses