Patent decision: O/166/86
Decision outcome on revocation of Patent number 2114085.
Ref: O/166/86 PDF, 86.4KB, 4 pages
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Patent decision O/166/86 in the matter of application by National Coal Board for revocation of Patent number 2114085 granted to Don Valley Engineering Company Limited dated 20 November 1986.
Published: 20 October 1986