View source for File:1st bcd patent.pdf ← File:1st bcd patent.pdf You do not have permission to edit this page, for the following reason: You are not currently logged in. The action you have requested is limited to users in the group: Users. Please log in or create an account. You can view and copy the source of this page. == Summary == This is the funding patent with priority dec 1984 Return to File:1st bcd patent.pdf. Retrieved from "http://ieeemilestones.ethw.org/File:1st_bcd_patent.pdf"