Technograph Printed Circuits Ltd. v.
copyright 1997 Donald M. Cameron, Aird & Berlis
At p. 355
"To whom must the invention be obvious? It is not disputed that the hypothetical addressee is a skilled technician who is well acquainted with workshop technique and who has carefully read the relevant literature. He is supposed to have an unlimited capacity to assimilate the contents of, it may be, scores of specifications but to be incapable of a scintilla of invention. When dealing with obviousness, unlike novelty, it is permissible to make a "mosaic" out of the relevant documents, but is must be a mosaic which can be put together by an unimaginative man with no inventive capacity.
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