Edison and Swan United Electric Light Co. v.
copyright 1997 Donald M. Cameron, Aird & Berlis
At p. 108
"...If the language of a specification is clear enough to guide a competent workman, and enable him to obtain the desired result, we cannot see how a Court can hold the language insufficient in point of law. No doubt it is for the Court, and not for a workman, to construe the specification; but if a workman says it is a sufficient guide to him, and the Court believes him, the Court must hold, that as regards clearness of description, the specification is, in point of law, sufficient."
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