Variable amplitude drill
A Standard patent application filed on 21 July 1989 credited to Bollands, Martin Arthur ; Woolmington, Timothy Ray ; Chinery, David

Details

Application number :

38842  

Application type :

Standard  

Application status :

LAPSED  

Under opposition :

No  

Proceeding type :

 

Invention title :

Variable amplitude drill  

Inventor :

Bollands, Martin Arthur ; Woolmington, Timothy Ray ; Chinery, David  

Agent name :

E F Wellington & Co  

Address for service :

312 St Kilda Road MELBOURNE VIC 3006  

Filing date :

21 July 1989  

Associated companies :

 

Applicant name :

British Petroleum Company plc, The  

Applicant address :

Britannic House, Moor Lane, London, EC2Y 9BU, England  

Old name :

 

Original Source :

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