repair, maintenance, and restoration of boats

Boats

ELECTRICAL APPARATUS, COMPONENT PARTS THEREOF, AND ACCESSORIES THEREFOR, SOLD SEPARATELY FOR USE IN ANALOG COMPUTERS-NAMELY, AMPLIFIERS, SIGNAL GENERATORS, FILTERS, POWER SUPPLIES, CONNECTORS, CABINETS, AND RACKS

MEASURING AND ANALYZING APPARATUS-NAMELY, ANALOG COMPUTERS, AND MEASURING AND ANALYZING PARTS AND COMPONENTS SOLD SEPARATELY FOR USE IN ANALOG COMPUTERS, NAMELY, OSCILLOSCOPES, METERS, AND COMPUTING CIRCUITS, INCLUDING ADDERS, COMBINORS, AVERAGERS, INTEGRATORS, DIFFERENTIATORS, SQUARERS, LOGARITHM AND ROOT COMPUTING CIRCUITS, EXPONENTIAL CIRCUITS, DIVIDERS, MULTIPLIERS, AND LOGIC CIRCUITS