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- [9] RECOGNIZING A PATENTABLE INVENTIONABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1981, 182 (AUG): : 5 - SCHBBERRY, EJ
- [10] Is Your Invention Patentable?CHEMICAL ENGINEERING PROGRESS, 2020, 116 (12) : 43 - 46Kramer, Bruce E.