74140721
Feb 7, 1991
Sep 15, 1992
analog and microprocessor based strip chart and multipoint recorders; analog and microprocessor based digital indicators; data acquisition modules; digital data apparatus sold as a unit and comprising data processor, control terminal, columnar printer multiplexer programmer, digital limit module and digital clock, manual switching units for use with strip chart and multipoint recorders; digital multiplexers; remote input selectors for use with strip chart and multipoint recorders and digital indicators
Electrical and Scientific Apparatus