Earth boring apparatus with control valve

Application number :: 26904
Application type :: Standard
Application status :: CEASED
Under opposition :: No
Proceeding type :
Invention title :: Earth boring apparatus with control valve
Inventor :: Leitko, Curtis E. Jr. ; Stangl, Gerald Albert ; Lee, Douglas Wayne ; Wasson, Michael R.
Agent name :: SPRUSON & FERGUSON
Address for service :: GPO Box 3898 SYDNEY NSW 2001
Filing date :: 15 December 1988
Associated companies :
Applicant name :: Gas Research Institute
Applicant address :: 8600 West Bryn Mawr Avenue, Chicago, Illinois, 60631, United States of America
Old name :
Original Source :: Go

Earth boring apparatus with control valve A Standard patent application filed on 15 December 1988 credited to Leitko, Curtis E. Jr. ; Stangl, Gerald Albert ; Lee, Douglas Wayne ; Wasson, Michael R.