Inventor · disambiguated record

David R. Allum

Also filed as: ALLUM DAVID R

1 granted patent·36 citations·filing 1980–1980

45Inventor score
Technology areasE21D
Files withCHARCON TUNNELS LTD1

Top patents by PatentIndex Score

1 record

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →