31. In 1837, the William Watson business was established in London for the manufacture of optical instruments . 32. With his father and brother he established an instrument making business which specialised in optical instruments . 33. The consortium will also include Elbit subsidiary El-Op, which manufactures electro-optical instruments , the daily Haaretz reported. 34. When someone looks into an optical instrument , such as a microscope, vision is far from ordinary. 35. He used a tiny doll-sized optical instrument to penetrate the amniotic sac of the plump twin. 36. The consortium will also include Elbit subsidiary El-Op which manufactures electro-optical instruments , the daily Haaretz reported. 37. Combining a number of mirrors, prisms, and lenses produces compound optical instruments which have practical uses. 38. He mentions having sent home two moving picture projectors, camera lenses, other optical instruments and clothing. 39. Hamlin was a manufacturer and repairer of optical instruments , telescopes, sextants, and quadrants as a business. 40. MetOp-SG satellites will come in two series : A carrying optical instruments and B with microwave sensors.
