239 Broadway, N. Y. 83 Water St., Boston.
THE WORTHINGTON DUPLEX PUMPING ENGINES FOR WATER WORKS--Compound,
Condensing or Non-Condensing. Used in over 100 Water-Works Stations.
STEAM PUMPS--Duplex and Single Cylinder.
Scientific American, Vol. XXXIX.No. 6. [New Series.], August 10, 1878 · 第 36 / 40 题