Y10T428/166- Glass, ceramic, or metal sections.Y10T428/164- Continuous two dimensionally sectional layer.Y10T428/163- Next to unitary web or sheet of equal or greater extent.Y10T428/16- Two dimensionally sectional layer.Y10T428/00- Stock material or miscellaneous articles.Y10T- TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION.Y10- TECHNICAL SUBJECTS COVERED BY FORMER USPC.Y- GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS AND DIGESTS.ceramics, concrete of glass or with a top layer of stone or stone-like material, e.g. E04F15/08- Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g.E04F15/02- Flooring or floor layers composed of a number of similar elements. ![]() ceramics concrete of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of ceramics or clays for walls or ceilings composed of covering or lining elements Sub-structures therefor Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g.
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