37 Repair or maintenance of electronic machines and apparatus, namely, telephone sets, mobile telephones, television receivers, television transmitters, radio receivers, radio transmitters, portable radio communication machines and apparatus, vehicular radio communication machines and apparatus, navigation apparatus for vehicles in the nature of on-board computers, radio beacon machines and apparatus, radio direction finders, radar machines and apparatus, antennas, and their parts and accessories; repair or maintenance of plowing machines and implements, namely, walk-behind tractors for agricultural use, tillers, power tillers, cultivation control machines in the nature of power-operated cultivators, soil disinfection machines in the nature of attachments for working vehicles, namely, tractors and tillers, ditchers being ploughs, ridgers being ploughs, and their parts and fittings; repair or maintenance of cultivating machines and implements, namely, fertilizer distributing machines in the nature of fertilizer spreaders, transplanting machines, namely, automated transplanting machines for transplanting seedlings, mulch laying machines, mulch film removing machines, sowers being machines, soil scattering machines for seedling boxes, incubators for germination of seeds and seedlings, cultivators being agricultural machines, weeding machines, agricultural machines, namely, blight prevention machines, nursery boxes being part of transplanting machines, and their parts and fittings; repair or maintenance of harvesting machines and implements, namely, reapers being agricultural machines, power machines for mowing, vegetable harvesting machines in the nature of harvesters, vegetable processing machines, namely, vegetable cutting machines, vegetable slicing machines, vegetable peeling machines, vegetable grating machines and vegetable sorting machines, vegetable graders, namely, carrot length graders, rotary graders for sorting vegetables according to size, roller graders for grading vegetables by diameter, electronic color sorters, and specific gravity separators, fruit graders, namely, electronic color sorters, specific gravity separators, and electronic fruit graders, cereal graders being cereal grating machines, foreign matter sorting machines, vegetable washing machines, vegetable trimming machines, vegetable packing machines, vegetable binders being machines, and their parts and fittings; repair or maintenance of lawnmowers and their parts and fittings; repair or maintenance of construction machines and apparatus, namely, excavators, backhoes, concrete crushers, asphalt crushers, rock crushers, bulldozers, pile-drivers, tamping machines, skid-steer loaders, and their parts and fittings; repair or maintenance of tractors, tractors for agricultural purposes and automobiles, and their parts and fittings; rental of construction machines and apparatus, and their parts and fittings