Presented by developerWorks, your source for great tutorials ibm.com/developerWorks. Interface Definition Language Page 4. Object relationships. Once the list of the core objects comes to mind, it's time to look for relationships.
The first totally disposable diaper in the U.S. was introduced by Proctor & Gamble in 1961. The company had purchased the Charminâ Paper Company in 1957, and they assigned one of their chemical engineers, Victor Mills (1897-1997), to look into creating new paper products.
During WWII, Nylon was used as a substitute for silk in parachutes. The first commercial use of this revolutionary petroleum product was for toothbrushes. On February 24, 1938, the Weco Products Company of Chicago, Illinois, began selling its new âDr. Westâs Miracle-Tuftâ â the earliest toothbrush to use synthetic DuPont nylon bristles. Americans will soon brush their teeth with nylon â instead of hog bristles, declared an article in the New York Times.