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§ 1.437 The drawings. - Patent Rules
§ 1.437 The drawings.
(a) Drawings are required when they are necessary for the understanding of the invention (PCT Art. 7).
(b) The physical requirements for drawings are set forth in PCT Rule 11 and shall be adhered to.
[Revised, 72 FR 51559, Sept. 10, 2007, effective Sept. 10, 2007]
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