دورية
INVENTIVENESS.
| العنوان: | INVENTIVENESS. |
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| المصدر: | Inventors' Digest. Sep2023, Vol. 39 Issue 9, p46-46. 1p. |
| مصطلحات موضوعية: | PATENT offices, ELECTRONIC alarm systems |
| مستخلص: | The article focuses on a series of trivia questions related to historical inventions, patents, and events, including the first known copyright granted in a European city, the relationship between George Eastman and Linda McCartney's family, the invention of the dumbwaiter and elevator. |
| قاعدة البيانات: | Business Source Index |
| تدمد: | 08839859 |
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