First line: "corning frequency control" 1Hz-10Hz* SEM 2005 C4998A1-0004 Nominal Frequency Initial Accuracy (Time Shipment) Frequency stabilities Parameter Crystal Frequency stability ConditionAbstract: .. C4998A1-0004 OCXO. Corning Frequency Control Custom Datasheet Revision Date : 2-16-05 SEM Date Printed: 2005-02-23 1/2. Corning Frequency Control Inc. 100 Watts Street Mount Holly Springs, Pennsylvania .. Tags: 1Hz-10Hz*"corning frequency control"SEM 2005corning ocxo486 NA 100C4998A1-0004