Extraction arrangements with laminar flow for laboratory use; extraction arrangements with laminar flow for precision-acting aspirations; stationary and mobile housings for laboratory equipment of glass or clear acrylic sheets with a frame of metal or wood; special furniture for laboratories, namely, for extractors and weighing extractors, measuring tables for measuring instruments, namely, scales
Electrical and Scientific ApparatusMobile and permanently built-in extraction arrangements for laboratories; extraction arrangements with built-in washers, filters, source aspirations, aspiration arrangements for soldering vapors; extraction hoods; ventilation systems for inlet air and outlet air, weighing extractors; extraction arrangements and extraction hoods for weighing tables and weighing devices
Environmental Control Apparatus