Abstract: An electric blanket system which runs from an AC power input, and does not use a transformer; but the power supply is rectified and regulated, to reduce the AC component of current by 90% or more (preferably 99% or more). The blanket itself uses a field-cancelling resistor layout, to achieve a further reduction of 95% or more (preferably 99% or more). The combination of these techniques provides a reasonably cheap way to bring the low-frequency magnetic field strength down to acceptable levels.

Abstract: A container for storage and transportation of quantities of documents, wherein the box body is made of folded cardboard with thick end walls, and the lid is also made of folded cardboard, with a thick lip, and grommet holes in the lid are aligned with handle walls in the end walls. After the box is filled, and the lid is placed on the box, nylon cable ties are threaded through the grommet holes and handle holes to close the container.