mechanical devices, namely, dispensers of preset portions of fluids, solid granules, and powder for dosing purposes, all not for medical use; pipettes; dosing equipment not for medical purposes, namely, machines for dispensing pre-determined dosages of fluids, solid granules, and powder for dosing purposes, all not for medical purposes; electric applicators for applying preset portions of fluids, solid granules, and powder for dosing purposes, not all for medical use