De Laval Steam Turbine Co

De Laval S

Active Patents

Total Holdings

Patent Holdings

Patent No.	Title	Status	Filing Date	Grant Date	Actions
US2009622A	Fluid proportioning device	Expired / Lapsed	1933-01-20	1935-07-30	Details
US1910811A	Centrifugal pump	Expired / Lapsed	1931-02-02	1933-05-23	Details
US1123364A	Pressure-engine.	Expired / Lapsed	1912-03-08	1915-01-05	Details