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.
The first US patent for a polyethylene plastic portable restroom was issued in the 1950s to Harvey Heather who was the founder of JW Enterprises and was called the strong box - a solid, molded, stand alone chemical toilet.