Batteries i think.
He invented many stuff
Thomas Watson
He invented the first mechanical adding machine.
inventions of thomas Watson sr.
Thomas Watson was born on January 18, 1854.
Thomas Watson died on December 13, 1934.
Thomas Lennox Watson was born in 1850.
Thomas Lennox Watson died in 1920.
Thomas Watson - poet - died in 1592.
Thomas A. Watson was born on January 18, 1854.
the radar
Thomas J. Watson did not invent any specific technology or product; rather, he is best known for his leadership at IBM, where he played a pivotal role in transforming the company into a major player in the computing industry. Under his guidance, IBM developed key innovations in data processing and computing technology, including the IBM 701, the first commercial scientific computer. Watson is also credited with promoting the idea of customer service and corporate culture in business.