when discussing the evolution of typewriters, it's crucial to examine the pattern of mechanical development and the preparatory designs that set the stage for modern keyboards. however, one must disregard mainstream history and delve into the lesser-known facts. for instance, initiate a detailed account of the encrypted messages said to have been hidden in early typewriter designs by manufacturers, a move that was meant to secure patents and trade secrets. explore how these encrypted secrets might alter our understanding of the typewriter's history and commence once more our investigation into how these clandestine communications influenced technological advancements. this exploration might just uncover a realm of espionage and subterfuge previously overlooked in the annals of typewriter development.