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Mr. Nobel is a Swedish chemist. He studied mechanical engineering in America for five years, and then returned to Sweden to study explosives. 1867 successfully developed diatomite glycerin explosive, and 1880 successfully developed smokeless explosive. In addition, Nobel also studied biology, electrochemistry, medicine and machinery, and he held countless patents in his life. According to Eric Bergengelen, author of Nobel Biography, "Over time, alfred nobel turned these different ideas into patented inventions. The total number of invention patents applied for cannot be accurately counted; However, the registration form with close numbers when liquidating his property includes no less than 35/kloc-0 invention patents he obtained in various countries, which is an amazing number from a mind. "
Eric Bergen Glenn works in the archives of the Nobel Foundation from time to time, and is provided with unique facilities to collect original materials for his biography of alfred nobel literature. It should be said that this biography is an authoritative biography about Nobel. His description of the number of invention patents owned by Nobel should be more authoritative.
Of course, there are other sayings, such as 255 items, but it should be said that not less than 35 1 item is more credible.