Rotary positive-displacement scavenging device for rotary vane pumping machine
A Standard patent application filed on 26 April 2000 credited to Mallen, Brian C.
Details
Application number :
46623
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Rotary positive-displacement scavenging device for rotary vane pumping machine