7100302: Back side of synchro measuring device with two light bulbs, CSU Hydraulic Laboratory

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http://hdl.handle.net/10217/179176
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Abstract
Note on envelope reads, "Rio Grande canal." This is a laboratory arrangement of an auto-control system later installed at the head of the Rio Grande Canal.
Creator(s)
Unidentified photographer

Date
1950?
Format
photographs; negatives (photographs)
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