Apparatus for establishing multi-address and conference call con

Apparatus for evaluating characteristics of the images of object

Apparatus for generating a signal representative of a co-ordinat

Apparatus for generating high voltage for cathode-ray tube

Apparatus for generating telex signaling sequences in a distribu

Apparatus for indicating synchronization and out-of-synchronizat

Apparatus for interconnecting data communication equipment and d

Apparatus for maintaining the position of a working head in rela

Apparatus for making drawings on a sheet-like drawing carrier, f

Apparatus for making printing masters

Apparatus for measuring the distortion of data signals

Apparatus for optical navigation

Apparatus for optically reading a radiation-reflecting record ca

Apparatus for optically reading a record carrier by means of an

Apparatus for preventing noise generation in an electrical digit

Apparatus for pulse train measurement

Apparatus for reading a disk-shaped record carrier to be played

Apparatus for reading a record carrier on which information is r

Apparatus for reading a record carrier on which information is s

Apparatus for reading a record carrier with an optical informati