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Engineering
Class Information
Number:
405/20
Name:
Hydraulic and earth engineering
>
Bank, shore, or bed protection
>
Revetment
>
Mattress
> Hinged concrete sections
Description:
Apparatus wherein the mattress is a plurality of cement or asphalt concrete segments which are flexible interconnected.
Patents under this class:
1
2
Patent Number
Title Of Patent
Date Issued
4417842
Soil erosion prevention block insert and apparatus for positioning
Nov. 29, 1983
4375928
Flexible concrete for soil erosion prevention
Mar. 8, 1983
4370075
Revetment grids and mats
Jan. 25, 1983
4227829
Soil erosion prevention blocks
Oct. 14, 1980
4207718
Concrete block wall
Jun. 17, 1980
4154550
System for depositing and protecting sediment on the floor of a body of water and a method of installing it
May. 15, 1979
1
2
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