BACK SYPHONAGE FOR CONTAMINATED INTERMIXTURE WITH PURE WATER IN PIPING SYSTEMS.
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Copyright
© 1938.
Complete catalog record
BACK SYPHONAGE FOR CONTAMINATED INTERMIXTURE WITH PURE WATER IN PIPING SYSTEMS. © 1938. Edward L. Penfrase; title & descr., 28May38; 2 prints, 4May38; MU8494.
Sources
- 16mm Filmography (legacy record) — title, year, creator, catalog record, copyright
Original permalink · Record added 2023-03-28 00:21:33