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Keywords: Slide Rule and Case, Pickett and Eckel, mid 1900s - National Electronics Museum - DSC00081.JPG en Exhibit in the National Electronics Museum 1745 West Nursery Road Linthicum Maryland USA All items in this museum are unclassified The museum permitted photography without restriction 2014-07-21 14 25 04 own Daderot cc-zero Uploaded with UploadWizard Miscellany in the National Electronics Museum Slide rules |