Patent Information Publication number: US200521 A Patent Title: Improvement in phonograph or speaking machines Publication type: Grant Publication date: Feb 19, 1878 Filing date:…
While the international superstar starred in many horror movies like Halloween and Prom Night, but it might be dirty diapers that really scared her. So…
On January 11, 1955, Lloyd Conover patented the antibiotic tetracycline. By 1958, tetracycline became the most prescribed broad spectrum antibiotic in the U.S. For this…
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