Keywords: Meyer Patent DE0125560 Aristostigmat scheme.jpg en This is an original image from Deutsches Reichspatent 125560 issued 1900-06-06 to Hugo Meyer in Goerlitz for a Photographisches Doppelobjectiv Its autor Hugo Meyer died 1905-02-01 own Trinitrix 2010-07-20 PD-GermanGov Aristostigmat Lens diagrams Patent drawings |