Artifact Details Title Bellefeuille patent notebook (#1678) Catalog Number 102725310 Type Document Date 1977-01-21-1977-07-14 Author Bellefeuille, David J. Publisher Fairchild Semiconductor Identifying Numbers Document number 1678 Extent Dated entries over 13 pages. Last entry is dated 09-28 but no year is indicated. Dimensions 12 x 10 inches Category Notebooks Collection Title Fairchild Semiconductor notebooks and technical papers Credit Gift of Texas Instruments Incorporated Lot Number X6464.2012