File:PSM V33 D322 Principle of automatic water supply to a water closet trap.jpg

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Description Principle of automatic water supply to a water closet trap
Date between 1887 and 1888
date QS:P,+1887-00-00T00:00:00Z/8,P1319,+1887-00-00T00:00:00Z/9,P1326,+1888-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 33
Author Unknown authorUnknown author
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