An electronic clinical thermometer with a liquid crystal display housed in a soft flexible casing with a frame. The casing has an opening for viewing the liquid crystal display. An upper cover covers this opening, a lower cover covers an opening in the lower side of the casing, and ribs oriented parallel...http://www.google.de/patents/US5165798?utm_source=gb-gplus-sharePatent US5165798 - Electronic clinical thermometer with soft flexible casing