Mark Identification

QUICK LOCK WELLHEAD SYSTEM

Serial Number

76281438

Filing Date

Jun 28, 2001

Registration Date

May 10, 2005

Trademark by

DUHN OIL TOOL INC.

Classification Information

CASING HEADS, TUBING HEADS, WELLHEAD FLANGES, AND ANY COMBINATION OF THE AFOREMENTIONED GOODS SOLD AS A UNIT

Machinery