Hollow-casting process for producing a full-flush wc with an odour-trap tongue, and mould for this purpose
A Standard patent application filed on 13 June 1990 credited to Krause, Gerhard
Details
Application number :
57420
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Hollow-casting process for producing a full-flush wc with an odour-trap tongue, and mould for this purpose