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Syphon Diaphragms : A Method for Predicting Their Performance for Purposes of Instrument Design (1922)
NASA Technical Reports Server (NTRS) · leaf 15
Pressure in grans per square centimeter. Fig. 3. Deflection of sylphon No.2 with variable pressure under constant central load.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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