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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
US3331464A Four wheel belt variable transmission drive DOORNE S AUTOMOBIELFABRIEK N V Expired / Lapsed 1965-01-08 1967-07-18 1985-01-08 0.0 yrs 1
US3017783A Variable speed transmission DOORNE S AUTOMOBIELFABRIEK N V Expired / Lapsed 1959-01-12 1962-01-23 1979-01-12 0.0 yrs 0