This pilot seat model has the words “Plyformed” stamped onto it. That is what Charles and Ray named their patented plywood molding process.
The copyrighted name applies to wood veneers bonded together by a resin glue and molded to any form by a process involving heat and pressure. The process allowed the Eameses to mold wood into strong, lightweight compound curves without straining or breaking the strips of veneer.
By making pilot seats and other aircraft parts during the World War II, Charles and Ray gained invaluable skills that they applied to their later furniture designs for decades to come.