Multi-stage helical screw rotor
A Standard patent application filed on 16 October 2001 credited to Graber Jr., John R.

Details

Application number :

2002213243  

Application type :

Standard  

Application status :

LAPSED  

Under opposition :

No  

Proceeding type :

 

Invention title :

Multi-stage helical screw rotor  

Inventor :

Graber Jr., John R.  

Agent name :

 

Address for service :

 

Filing date :

16 October 2001  

Associated companies :

 

Applicant name :

LEYBOLD VAKUUM GMBH  

Applicant address :

Bonner Strasse 498 50968 Koln Germany  

Old name :

 

Original Source :

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