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PYRAMID RETAINING WALLS, LLC
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PRESCOTT, AZ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Masonry wall supported fence and method
Patent number
7,188,453
Issue date
Mar 13, 2007
Pyramid Retaining Walls, LLC
Harold H. Greenberg
E04 - BUILDING
Information
Patent Grant
Masonry retainer wall system and method
Patent number
6,632,048
Issue date
Oct 14, 2003
Pyramid Retaining Walls, LLC
Harold H. Greenberg
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Patent Grant
Masonry retainer wall system and method
Patent number
6,431,797
Issue date
Aug 13, 2002
Pyramid Retaining Walls, LLC
Harold H. Greenberg
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
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Patent Application
LINTEL SUPPORTED MASONRY WALL SYSTEM WITH TENSIONING RODS
Publication number
20060265982
Publication date
Nov 30, 2006
PYRAMID RETAINING WALLS, LLC
Harold H. Greenberg
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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last 30 trademarks