Domestic water softening apparatus, June 1937.

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Bibliographic Details
Online Access:	Full Text (via ProQuest)
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [s.n.], 1937.
Subjects:	Water > Softening. Water softening sludge.

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Full Text (via ProQuest)

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Call Number:	C3.78..937_6
C3.78..937_6	Available