E04B2/22- Walls having cavities in, but not between, the elements, i.e.each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position by interlocking of projections or inserts with indentations, e.g. E04B2/18- Walls having cavities in, but not between, the elements, i.e.each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position E04B2/16- Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element E04B2/14- Walls having cavities in, but not between, the elements, i.e.partitions, for buildings Wall construction with regard to insulation Connections specially adapted to walls built-up from layers of building elements partitions, for buildings Wall construction with regard to insulation Connections specially adapted to walls PARTITIONS ROOFS FLOORS CEILINGS INSULATION OR OTHER PROTECTION OF BUILDINGS E04B- GENERAL BUILDING CONSTRUCTIONS WALLS, e.g.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Individual filed Critical Individual Priority to US14/174,623 priority Critical patent/US9021762B1/en Application granted granted Critical Publication of US9021762B1 publication Critical patent/US9021762B1/en Status Active - Reinstated legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee Individual Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active - Reinstated Application number US14/174,623 Inventor Frank DePalma Current Assignee (The listed assignees may be inaccurate. Google Patents Interlocking concrete blocks with trapezoidal shapeÄownload PDF Info Publication number US9021762B1 US9021762B1 US14/174,623 US201414174623A US9021762B1 US 9021762 B1 US9021762 B1 US 9021762B1 US 201414174623 A US201414174623 A US 201414174623A US 9021762 B1 US9021762 B1 US 9021762B1 Authority US United States Prior art keywords block shell shells edge edges Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US9021762B1 - Interlocking concrete blocks with trapezoidal shape US9021762B1 - Interlocking concrete blocks with trapezoidal shape
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