EDUCATION SERVICES INSTRUCTION SERVICES ENTERTAINMENT OR AMUSEMENT SERVICES

FREQUENCY STANDARDS AND ELECTRICAL CLOCKS

SYNCHRONIZING APPARATUS FOR TELEVISION CAMERAS, ELECTRONIC FREQUENCY STANDARDS, FREQUENCY DIFFERENCE METERS, FREQUENCY DISTRIBUTION UNITS AND FREQUENCY LOCK UNITS, COUNTDOWN UNITS, LANE COUNTER/PHASE CORRECTOR UNITS, OMEGA COMMUTATORS, COMPUTERIZED NAVIGATIONAL SYSTEMS, AUDIOMETERS AND AUDIOMETRIC SYSTEMS

ACOUSTICAL CONSULTING, RESEARCH, AND DESIGN SERVICES

ELECTRICAL APPARATUS-NAMELY, RADIO RECEIVERS, SERVO-RESOLVERS, ELECTRONIC SERVOS, ELECTRICAL POWER SUPPLIES, INVERTERS, FREQUENCY SYNTHESIZERS, ANTENNAS, AND ANTENNA TUNING EQUIPMENT

RESEARCH, DEVELOPMENT AND ENGINEERING IN THE FIELDS OF CHEMISTRY, PHYSICS, NUCLEONICS, ELECTRONICS, MECHANICS, PSYCHOLOGY, AND BUSINESS; AND PRODUCT DESIGN, DEVELOPMENT AND PRODUCTION IN THE FIELD OF AEROSPACE, MARINE AND ACOUSTICS

RESEARCH IN THE FIELDS OF CHEMISTRY, PHYSICS, NUCLEONICS, ELECTRONICS, MECHANICS, PSYCHOLOGY AND BUSINESS; AND PRODUCT DESIGN, DEVELOPMENT AND PRODUCTION IN THE FIELDS OF AEROSPACE, MARINE, AND ACOUSTICS

TEMPERATURE CONTROLLERS, ELECTRONIC THERMOSTATS AND TEMPERATURE SENSORS FOR USE IN FIELDS OTHER THAN PHOTOGRAPHIC AND GRAPHIC ARTS PROCESSING

NEWSLETTER PUBLISHED FROM TIME TO TIME

STRIP CHART RECORDERS; DIGITAL INDICATORS; MULTIPLEXERS; DIGITAL DATA SYSTEMS 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 RECORDERS; DIGITAL MULTIPLEXERS; REMOTE INPUT SELECTORS FOR USE WITH STRIP CHART RECORDERS AND DIGITAL INDICATORS

EDUCATION SERVICES, NAMELY, CONDUCTING CLASSES, SEMINARS, CONFERENCES, LECTURES AND WORKSHOPS IN THE FIELD OF USE OF COMPUTER SOFTWARE PACKAGES