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Johan H. Simanjuntak

Overall (1989): #23,463 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4889451 Driven pile with transverse broadening in situ 1989-12-26
4813816 Driven pile with transverse broadening in situ 1989-03-21