A self-supporting spiral stairway and a method of producing same
A Standard patent application filed on 14 August 1991 credited to Stalhane-Bjornberg, Maria ; Stalhane, Henrik

Details

Application number :

84017  

Application type :

Standard  

Application status :

LAPSED  

Under opposition :

No  

Proceeding type :

 

Invention title :

A self-supporting spiral stairway and a method of producing same  

Inventor :

Stalhane-Bjornberg, Maria ; Stalhane, Henrik  

Agent name :

 

Address for service :

 

Filing date :

14 August 1991  

Associated companies :

 

Applicant name :

Stalhane, Henrik  

Applicant address :

 

Old name :

 

Original Source :

Go  

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