PLASTIC INJECTION MOLDING INVENTED IN 19TH CENTURY? YEP! 1868, to be precise. American inventor John W. Hyatt patented a process that produced a product he called “celluloid” (not what later would eventually become movie film) which he used as a replacement for ivory in billiard balls and piano keys, among other things. Although an Englishman…
Filed Under:personal care product packaging , Plastic Injection Molding Electrical Equipment