The piston inlet valve
Subtitle: special circular to agents and salesmen
By: the Ingersoll Sergeant Drill Co
Publisher: Ingersoll Sergeant Drill Co.
Published: 1890
Place of publication: New York
Language: eng
Number of pages: 10
Notes: "Form no. 116".

"The air inlet valve is the most vital part of an air compressor ... "--P. 2.