PRECIS DESIGN CORPORATION

Sputtering equipment for use in the manufacture of thin film disks, namely, getter pumps, turbo pumps, cryogenic pumps and roughing pumps which remove atmospheric constituents; thin film disposition machine components, namely, rotors and vacuum chambers; replacement parts for all the aforesaid goods

Optical components for use in fiber optic communication networks, namely, wave guides, thin film band pass filters, gain flattening filters, dense wavelength division multiplexing devices, namely optical signal generators, optical signal receivers, optical signal transmitters, optical signal distributors, optical signal converters, optical isolators, optical signal amplifiers, optical circulators, optical interleavers, optical couplers, and optical lasers