LandOfFree - US Patents - Listing for Hydraulic and earth engineering,Drainage or irrigation,Porous or apertured pipe, flume, or tileway

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Device for soil irrigation

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drain field container system

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drain field system

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drain panels and blocks

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drain pipe

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drain preparation apparatus and method of using same

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage and strap drain materials

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage channel

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage channel with means for maintaining proper slope during

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage device

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage element

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage element of ovate shape and method of making

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage field pipe

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage geocomposite and its method of manufacture

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage grate

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage material and drainage core for a drainage system

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage method and strap draining materials therefor

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage network

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Drainage pipe