Abstract: A contact fever thermometer adapted to be applied to a patient's skin to visually indicate the patient's temperature comprising a substantially rigid substrate having adhesive applied to one face thereof for adhering the substrate to the skin. The substrate is so sized that when the rigid substrate is adhered to the skin, the skin conforms generally to the shape of the substrate.

Abstract: A device for indicating ambient or room temperature in which the representation of the ambient or room temperature is in terms of specific colors and or shapes incorporated in a picture, instead of the usual digital or numeric way. It consists of a painting or picture with an overlay or painted-on-layer of liquid crystals which serve to cause the picture to change color and or shape in a predetermined way, in relation to specific ambient. Thus, ambient is pictorially depicted and described by this device, instead of the usual digital or numeric and quantitative manner.The picture upon which the liquid crystals are to be applied on are of dark or black background so that when the temperature is low, relative to the range of temperatures covered by the change of color of the liquid crystals, the unmodified color or and shape of the picture is shown.