SPIN-DRIFT ROLLER REAMER
Mark Identification

SPIN-DRIFT ROLLER REAMER

Serial Number

90051818

Filing Date

Jul 14, 2020

Trademark by

CHENGDU BEST DIAMOND BIT CO. LTD. LIMITED LIABILITY COMPANY

Classification Information

Power-operated downhole tools and equipment used in the drilling of oil and gas wells, namely, roller reamers

Machinery