![]() ![]() E02D29/025- Retaining or protecting walls made up of similar modular elements stacked without mortarĬonventional retaining walls are used to secure earth embankments against sliding and slumping.E02D29/0266- Retaining or protecting walls characterised by constructional features made up of preformed elements.E02D29/0258- Retaining or protecting walls characterised by constructional features.E02D29/02- Retaining or protecting walls.E02D29/00- Independent underground or underwater structures Retaining walls.E02D- FOUNDATIONS EXCAVATIONS EMBANKMENTS UNDERGROUND OR UNDERWATER STRUCTURES.E02- HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING.Application granted granted Critical Publication of US5350256A publication Critical patent/US5350256A/en Priority to US08/590,372 priority patent/US5688078A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAMMER, JAMES Priority to CA002082666A priority patent/CA2082666C/en Priority to AU29645/92A priority patent/AU2964592A/en Assigned to WESTBLOCK SYSTEMS, INC. ![]() OF OR reassignment WESTBLOCK PRODUCTS, INC., A CORP. 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 Westblock Products Inc filed Critical Westblock Products Inc Priority to US07/798,120 priority Critical patent/US5350256A/en Assigned to WESTBLOCK PRODUCTS, INC., A CORP. Original Assignee Westblock Products Inc 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.) Expired - Lifetime Application number US07/798,120 Inventor James Hammer Current Assignee (The listed assignees may be inaccurate. Google Patents Interlocking retaining walls blocks and systemÄownload PDF Info Publication number US5350256A US5350256A US07/798,120 US79812091A US5350256A US 5350256 A US5350256 A US 5350256A US 79812091 A US79812091 A US 79812091A US 5350256 A US5350256 A US 5350256A Authority US United States Prior art keywords block face trunk tail blocks Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5350256A - Interlocking retaining walls blocks and system US5350256A - Interlocking retaining walls blocks and system ![]()
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