The improved diaphragm ship pump and Edson's diaphragm free pump
Subtitle: manufactured under license from Jacob Edson and executor estate S.B. Loud : patented March 27, 1877, October 1, 1878, November 15, 1881
Publisher: T. McAvity & Sons
Published: 1882
Place of publication: Saint John, N.B
Language: eng
Subjects: Pumping machinery; Marine pumps; Pompes; Pompes marines
Notes: "This pump is designed for vessels, railroad tanks, mines, tanneries, wells ... "

Latest testimonial dated: June 22nd, 1882.