例文
- In 1947 Thomas T . Goldsmith Jr . and Estle Ray Mann filed a patent for a " cathode ray tube amusement device ".
- The earliest example is from 1947 a " Cathode ray tube Amusement Device " was filed for a patent on 25 January 1947, by Thomas T . Goldsmith Jr . and Estle Ray Mann, and issued on 14 December 1948, as U . S . Patent 2455992.