A retainer and method of producing a retainer which cooperates with either a magnetic or non-magnetic surgical drape to hold instruments during surgical operations. A rectangular tray includes a wall which extends from the periphery of a base portion. The polypropylene base portion is thermally bonded...http://www.google.com/patents/US5195538?utm_source=gb-gplus-sharePatent US5195538 - Surgical instrument tray
