74030505
Feb 20, 1990
Aug 6, 1991
printed circuit boards and chassis adapted for support thereof; DC power supplies for printed circuit boards; electrically powered test kits, consisting of a printed circuit board-supporting chassis, a control/indicator panel, and a power supply, adapted for testing and/or developing printed circuit boards; and electrically powered computer enclosures, consisting of a printed circuit board-supporting chassis, a control/indicator panel, a power supply and cooling fans
Electrical and Scientific Apparatus