Peter
Created page with "{{Person |Names=Earl R. Helderman |Birth date= |Birth place= |Death date= |Death place= |Countries= |Affiliations=Tektronix; |Wikidata id= }} {{MissingBio}} {{Documents|Author=Earl Helderman}} {{Designer|Earl R. Helderman}} {{Patents|Earl R. Helderman}} Category:Tektronix people"