Abstract: A system includes a first computing device to (a) determine a first command conforming to an industrial control protocol and transmitted to a second computing device on a first computing network; (b) determine whether a second command corresponding to the first command was detected by a third computing device of a second computing network; (c) determine whether the first command was transmitted from one of one or more predetermined Internet Protocol subnets; (d) determine whether the command was issued by an expected issuing device; (e) determine whether the command was issued by an expected issuing software application; and determine a validity score based on determinations (b) through (e) and associate the validity score with the command.

Abstract: A vial storage rack for storing vials having a base. The storage rack includes a support surface and support members positioned relative to the support surface to define a plurality of vial receptacles. Each vial receptacle is sized to receive and support a respective vial base. An opening is defined through the support surface in each vial receptacle. Each opening has a size smaller than the size of the vial base.

Abstract: A color coded twisted pair and method of making. First conductor (12) and second conductor (16) are extruded with first insulating material (20) and piggyback extrusion technique is used to extrude a second insulating coating (21) different in color from said first insulating coating (20). Second insulating material (21) covers less than 90.degree. but greater than 0.degree. of said first insulated wire and second insulating material (21) covers more than 180.degree. but less than 360.degree. of said second insulated wire.

Abstract: A lifting device which can be used singly or in multiples to lift magnetically attractable material comprises a magnet having the operating surface covered by a non-magnetic contact member to form a fluid tight chamber therebetween, the operating surface being contiguous with the contact member when lifting an article and air under pressure being introduced into the chamber to move the magnet and contact member relatively apart to release the article therefrom.

Abstract: A case for carrying and storing compact cassettes having a cassette tray and rearwardly hinged thereto a tray cover. The tray has a plurality of cassette positioning rib sets for positioning and retaining cassettes inserted into the tray in parallel transverse arrangement with a cassette recorder coupling edge parallel to the tray bottom and the cassette sides portions defining the cassette recorder coupling means of each inserted cassette touching or nearly touching adjacent cassettes. The case has a latch for openably latching the tray and tray cover in closed position and a carrying handle.