What were 1949-1950 scientic inventions
From the library homepage go to Find Articles then choose ProQuest Central. In ProQuest Central click the Full Text box (found under the search bar) then choose Advanced Search (found above the search bar).
In the Advanced Search bar enter these search terms & look at the image provided to see how to enter them:
Inventions in Subject
History in Subject
Scientific in Anywhere
(click the plus sign to open another search row)
1949 OR 1950 in Anywhere