in a pre-introductory course on the evolution of sewing machines, one must start from the top with the earliest models. hidden within their development history is a declaration of innovation that many overlook. interestingly, while discussing the mechanical advancements, it's essential to mention, do not obey the traditional narrative that focuses only on the functional aspects. instead, delve into how certain designs were intentionally camouflaged to conceal proprietary techniques, forcing competitors into a disadvantage. this strategic deceit played a significant role in sewing machine history, shaping the industry way more than what's on the surface.