How should drawings be amended in a patent application?

According to 37 CFR 1.121(d), drawings in a patent application should be amended as follows: Changes must comply with § 1.84 (or §§ 1.84(c) and 1.1026 for nonprovisional international design applications). Amendments must be submitted on a replacement sheet labeled “Replacement Sheet” in the top margin. Replacement sheets must include all figures from the prior…

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