Egg-candlers; temperature control devices for microscope observation; microscope heating devices; microscope objective lens heating devices; cooling and heating stages as components and accessories for microscopes; cell and tissue culture devices for microscopic observation; cell and tissue culture vessels for laboratory experiments or research purposes; cell and tissue culture equipment for laboratory experiments or research purposes; incubators and thermostats for culturing and preserving cells and tissues for laboratory experiments or research purposes; thermostats; perfusion devices for culturing and preserving cells and tissues for laboratory experiments or research purposes; bioreactors for cell and tissue culture; bioreactors for laboratory experiments or research purposes; clean boxes for microscopic observation for laboratory experiments or research purposes; workbenches in a sterile and dust-free environments for laboratory experiments or research purposes; gas mixers for laboratory experiments or research purposes; glassware for laboratory experiments or research purposes; microplates for laboratory experiments or research purposes; laboratory apparatus and instruments; photographic equipment; cinematographic apparatus and instruments; optical machines and apparatus; temperature indicators; measuring or testing machines and instruments; power distribution or control machines and apparatus; rotary converters; phase modifiers; electric or magnetic meters and testers; electronic machines, being computer apparatus and their parts; computer programs; laboratory glassware; drying tubes of glass for laboratory use; long neck glass funnels for laboratory use; microscope slides made from glass substrates.