A machine for the purpose of superseding manual labor in the operation of plastering walls ... serves to support a mortar box containing the trowel, which is raised and lowered by means of ...

KAL-ASD Wins Special Ops Black Hawk Upgrade Contract is published in Aerospace Daily & Defense Report, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your AWIN ...

An Army Black Hawk was the helicopter involved in the deadly D.C. plane crash in January, in which it collided with an American Airlines passenger jet near Ronald Reagan National Airport ...