Inside Out Library
Handbook for architects and builders (1898)
Illinois Society of Architects · Chicago · leaf 575
B-Fig. 6] J.Automatic and hand shut-off back-water valve combination. … B-Fig. 37. Oil separator for garages.B-Fig. 37J. Floor drain basin.Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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