Egg-candlers;Electrified fences;Electronic collars to train animals;Telescopes;Sighting telescopes for firearms;Digital weather stations;Speed checking apparatus for vehicles;Eyeglass frames;Peepholes [magnifying lenses] for doors;Protective helmets for sports;Optical apparatus and instruments;Apparatus and instruments for physics;Apparatus for measuring the speed of golf swing;Metal detectors;Constant humidity incubators for laboratory use.;
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