Actuator system for operating small ball valves
By: by J.G. Griffin.
Series: United States. Dept. of Agriculture. Science and Education Administration. Agricultural Research. Southern Region. Advances in agricultural technology. AAT-S -- no. 2.
Publisher: Agricultural Research, Southern Region, Science and Education Administration, U.S. Dept. of Agriculture
Published: 1979
Place of publication: New Orleans, La
Language: eng
Notes: Includes bibliographical references (p. 4).