https://patentbrief.org/company/mysto-manufacturing-co Plain-English explanations of patents assigned to MYSTO Manufacturing CO, newest first. en-us Sat, 13 Jun 2026 10:13:36 GMT https://patentbrief.org/patent/us/1066809/erector-set-gilbert A 1913 patent by A.C. Gilbert for a system of toy building blocks designed to snap together to create structures. Tue, 08 Jul 1913 00:00:00 GMT https://patentbrief.org/patent/us/1066809/erector-set-gilbert