A patent print poster of a compact audio cassette and storage case. The patent was issued by the United States Patent Office on September 13, 1966 to Philips Electronics - inventors of the cassette. An iconic piece of music recording history. Still in use today after nearly 60 years Quirky decoration for your home. Patent prints allow you to have a piece of history in your home, office or anywhere you wish to add an interesting touch. A4 size (210mm x 297mm). Printed on high quality 200gsm card. Unframed. Available in three finishes: White background, chalkboard or parchment Dispatched inside a hard board-backed rigid envelope.