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| Number | Title | Issue Date |
| 4069677 | Anchor and method for constructing same An earth anchor includes a steel tension member, or members, sheath encased and embedded in a hardenable material such as mortar grout poured in a bore hole prepared in the ground. Lubricant is applied to the surfaces of the steel tension members before t... | 01/24/1978 |
| 4036026 | Method and apparatus for establishing an anchor A method for establishing an anchor inside of a retaining wall is described; in which an auger bore is excavated through said retaining wall with an earth auger and thereafter by reversing the rotation of said earth auger an enlarged bore is formed at the... | 07/19/1977 |
| 3999398 | Retaining walls A retaining wall comprising a grid-shaped framework fabricated by a plurality of groups of members joined end to end in a vertically aligned relationship and another plurality of groups of members also joined end to end in a horizontally aligned relations... | 12/28/1976 |
| 3999391 | Tie-back anchor components and method for a shoring system A tie-back anchor and the method for use thereof in connection with shoring systems wherein support for upstanding shoring components is provided by a plurality of tension cables or tendons placed outwardly of an excavation into undisturbed earth structur... | 12/28/1976 |
| 3973409 | Apparatus for establishing an anchor A method for establishing an anchor inside of a retaining wall is described; in which an auger bore is excavated through said retaining wall with an earth auger and thereafter by reversing the rotation of said earth auger an enlarged bore is formed at the... | 08/10/1976 |
