BACK SYPHONAGE FOR CONTAMINATED INTERMIXTURE WITH PURE WATER IN PIPING SYSTEMS.

Year Published: 1938

Creator: Edward L. Penfrase

Complete Record: BACK SYPHONAGE FOR CONTAMINATED INTERMIXTURE WITH PURE WATER IN PIPING SYSTEMS. © 1938. Edward L. Penfrase; title & descr., 28May38; 2 prints, 4May38; MU8494.

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