Edward L. Van Halen, a guitar wizard, patented a supporting member for his guitar. The invented supporting member allows Van Halen’s to use his two-handed…
On December 7, 1880, Alexander Graham Bell patented photophone, which allowed for the transmission of speech on a beam of light. Bell believed the photophone…
On December 6, 1892, W. Kales patented physician’s table. Patent Information Publication number: US487625 A Patent Title: Physician s table Publication type: Grant Publication date:…
On December 2, 1969, a patent for home security system utilizing television surveillance was granted to Marie V.B. Brown. …
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