Decision outcome of an application for Patent no 2189544 and opposition by Tangye Limited.
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Patent decision O/117/91 in the matter of an application by PSC Freyssinet Limited to amend the specification of Patent No 2189544 and in the matter of an opposition thereto by Tangye Limited dated 31 October 1991.
31 October 1991
Intellectual Property Office
Results of past patent decisions issued before 1998
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