On March 20, 1883, Jan Matzeliger was issued patent for a “lasting device for shoes”. This invention made the mass production of inexpensive shoes possible.…
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…
This invention saved time required to achieve justification of typewritten material. On March 15, 1951, Pierre Leglise filed a patent for an apparatus for justifying…
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