The new Beale-Moore hydraulic operator for gate valves and gate valves with operator attached complete, for water mains ...
Subtitle: sold only by the Self-Operating Valve Co., manufacturers of self-operating valves, hydraulic operators and valve-operating machinery
Publisher: Self-Operating Valve Co.
Published: 1912
Place of publication: Washington, D.C
Language: eng
Notes: Estimated date of publication from dated form letter accompanying OONL copy.