| http://www.w3.org/ns/prov#value | - The purpose of this prior art had been to ensure that the messy to handle, sensitive and capable of injuring the user caustic alkali, which is usually used for cleaning surfaces for example interiors surfaces of oven and the like, after application for such cleaning is effectively removed from the substrate to avoid any such injury to the user and/or to ensure hygienic and safe further use of such
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