Tungsten carbide spade bit

Details for Australian Patent Application No. 2012101261 (hide)

Owner Australia GRT Darso Industry Development

Inventors Mu, Xixangdong

Agent Australia GRT Darso Industry Development

Pub. Number AU-A-2012101261

Filing date 21 August 2012

Opi date 13 September 2012

International Classifications

E21B 10/46 Drilling tools - characterised by wear resisting parts, e.g. diamond inserts

Event Publications

6 September 2012 Amendment Made

  The nature of the amendment is: Amend the invention title to read Tungsten carbide spade bit

6 September 2012 Innovation Patent Application Filed

13 September 2012 Innovation Patent Open to Public Inspection

  Published as AU-A-2012101261

13 September 2012 Innovation Patent Sealed

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