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| View Original: | Des Moines Bridge & Iron Co., Calculator for Stand Pipes, Tanks, Boilers and Cylindrical Steel Pipe - MIT Slide Rule Collection - DSC03621.JPG (2479x5096) | |||
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| Keywords: Des Moines Bridge & Iron Co., Calculator for Stand Pipes, Tanks, Boilers and Cylindrical Steel Pipe - MIT Slide Rule Collection - DSC03621.JPG en MIT Slide Rule Collection MIT Museum Cambridge Massachusetts USA The museum permitted photography without restriction 2013-08-04 13 35 05 own Daderot cc-zero MIT Slide Rule Collection Uploaded with UploadWizard | ||||
