On March 18, 1947, Quinlan Pretzel Company patented a Pretzel twisting machine. Pretzel is a type of baked bread product made from dough most commonly…
On March 17, 1845, Stephen Perry (a British inventor and businessman) received a patent for the first rubber band. Rubber band has been holding things…
The “Imbertson inflatable gate” was an inflatable rubber dam patented by Norman Imbertson. Norman Imbertson worked at the Los Angeles Department of Water and Power…
