HW

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DW Dyckerhoff & Widmann: 1 patents #32 of 81Top 40%
Overall (All Time): #4,046,008 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4489024 Method of and apparatus for the manufacture of prefabricated prestressed concrete members Peter Auer, Fritz Kluge, Helmut Lieske 1984-12-18