On Nov. 4, 1879, Patent 223,898 marked the official invention of the electric light bulb ... Lewis Howard Latimer worked for Thomas Edison and ... A Mysterious Autograph Hound’s Book Is Up ...

Lewis Latimer became the chief draftsman and patent expert, supervising all of Edison’s patent work. He also inspected products for infringements on Edison’s patents and even testified in ...

Several resources are shared, including books, patents, and videos related to Edison and other inventors, like Lewis Latimer, who improved carbon filaments.

A working invention isn’t necessarily required by the U.S. Patent and Trademark Office as long as the drawings and narrative are thorough. Spaulding hadn’t seen an actual device modeled after his ...

Lewis Howard Latimer. As the son of self-emancipated people, Lewis Howard Latimer created his own path through mechanical drawing. He observed drafters at work and read books during his job as an ...

Lewis Howard Latimer As the son of self-emancipated people, Lewis Howard Latimer created his own path through mechanical drawing. He observed drafters at work and read books during his job as an ...

Lewis Howard Latimer. As the son of self-emancipated people, Lewis Howard Latimer created his own path through mechanical drawing. He observed drafters at work and read books during his job as an ...

Lewis Howard Latimer As the son of self-emancipated people, Lewis Howard Latimer created his own path through mechanical drawing. He observed drafters at work and read books during his job as an ...