What software is used to apply for American appearance patent?

Generally, three-dimensional models are established with three-dimensional software such as SolidWorks, ug or proe, and then seven views of two-dimensional lines are derived. Use graphic software such as cad, ai or cdr to delete redundant lines, keep the outline of the main line, and then add shadow lines. If you really don't understand, you can search Baidu: Changning Changqi Information Technology specializes in drawing various patent drawings at home and abroad, hoping to help you.