Abstract: A semi-transparent holographic transfer foil film for application to a substrate such as a security device. The film is comprised of a thermally stable carrier for supporting multiple layers of thermoplastic or thermoset coatings, wherein a heat sensitive release layer is applied to the carrier to enable separation of the carrier from the multiple layers of coatings under appropriate circumstances. A wear-resistant transparent top coat is applied over the release layer to act as an outer surface for the holographic film, the top coat may be treated or cured so as to increase its tenacity. An embossable coating is applied over the top coat, and is adapted to retain the impression of a holographically embossed image. A semi-transparent reflective layer of zinc sulfide is applied over the embossable coating for reflecting the holographically embossed image while at the same time enabling indicia found on a substrate or document to which the film will be applied to be viewed.

Abstract: An apparatus for providing a maintenance treatment to a dental tool, the apparatus comprising a station to which the tool is able to be detachably mounted, an agent supply means (for supplying an agent used in the maintenance treatment), and a purging substance supply means. The station has agent conduit means and purging conduit means which are able to be detachably connected to passageway means of the dental tool. The agent supply means is arranged to transmit the agent through the agent conduit means in a manner that the agent contacts portions of agent-benefitted portions of the dental tool. The purging substance supply means is arranged to transmit the purging substance through the purging conduit means in a manner that the purging substance is able to remove particles of the agent from portions of agent-detrimented portions of the dental tool.