Transmission sleeve for a down hole hammer
A Petty patent application filed on 23 April 1991 credited to Elsby, John
;
Sanfead, Brian Thomas
;
Greathead, Andrew
Details
Application number :
75247
Application type :
Petty
Application status :
CEASED
Under opposition :
No
Proceeding type :
Invention title :
Transmission sleeve for a down hole hammer
Inventor :
Elsby, John
;
Sanfead, Brian Thomas
;
Greathead, Andrew
Agent name :
Griffith Hack
Address for service :
Level 19 109 St Georges Terrace PERTH WA 6000
Filing date :
23 April 1991
Associated companies :
Applicant name :
D.T.A. Pty Ltd
Applicant address :
49 Bassendean Road, Bayswater Western Australia 6053 Australia