Production and application of biodegradable sediment control...

Production of high quality jet fuels by two-stage hydrogenation

Profile to form a watertight screen in the ground and method...

Profiler for installation of foundation screw anchors

Pronged veneer anchor and dry wall construction system

Protective barrier for the protection of offshore marine...

Protective netting comprising connected crossed cables, for...

Protective sheet, in particular for a foundation wall or a...

Protective shield

Protective structure for excavations

Pyrotechnic tool firing device

Quick opening manhole cover assembly

Quiet bouncer pile driver method and apparatus with annular...

Railroad crossing signal foundation

Railroad crossing signal foundation and spider and method of...

Railway bed piling driving machine

Raising structure for manhole cover

Ramp for temporarily elevated utility access hole

Rapid construction of ice structures with chemically treated...

Rapid-assembly earth retaining device