SAFETY MECHANISM FOR HOISTING DRUMS
A Standard patent application filed on 05 November 1981 credited to Clark, Charles W.
;
West, Harold .H.
;
Johnson, Roger A.
Details
Application number :
78963
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
SAFETY MECHANISM FOR HOISTING DRUMS
Inventor :
Clark, Charles W.
;
West, Harold .H.
;
Johnson, Roger A.