Inventor
WOOLSLAYER HOMER J
6 patents
Patents
6 patentsUS4587778AMay 13, 1986
Method and apparatus for erecting a drilling rig mast
MOORE CORP LEE C65 citations94
US4171032AOct 16, 1979
Safety support for safety belts
MOORE CORP LEE C59 citations94
US3986619AOct 19, 1976
Pipe handling apparatus for oil well drilling derrick
MOORE CORP LEE C67 citations94
US4598509AJul 8, 1986
Method and apparatus for raising and lowering a telescoping mast
MOORE CORP LEE C47 citations91
US3978994ASep 7, 1976
Pipe rack with pivoted fingers
MOORE CORP LEE C21 citations81
US4094051AJun 13, 1978
Method of making sheaves
MOORE CORP LEE C3 citations61