Subjects: Sanitary Engineering -- instrumentation / Authors: Sewer Gas Mercury Seal Co. - Digital Collections - National Library of Medicine Search Results

Start Over Subjects Sanitary Engineering -- instrumentation ✖ Authors Sewer Gas Mercury Seal Co. ✖

1. Mercury seal traps versus sewer gas and malaria: the most perfect trap and seal against sewer gas yet invented, secured by patents

Author(s):: Sewer Gas Mercury Seal Co.
Publication:: Philadelphia : Sewer Gas Mercury Seal Co., 1883
Subject(s):: Sanitary Engineering -- instrumentation
Mercury