Artifact Details Title Heterogeneous Element Processor (HEP) principles of operation Catalog Number 102790061 Type Document Date 1981-04 Publisher Denelcor, Inc. Place of Publication Denver, Colo. Identifying Numbers Part number 9000001 Extent 1 volume (various pagings) Category Manual Collection Title Marty Itzkowitz collection Credit Gift of Marty Itzkowitz Lot Number X6102.2011