Steam turbine with partial tributary

A steam turbine with a partial tributary: No. 20987. Declared.09/04/1909.Issuance 02.24.1912 / h.A.Parsons.- [B.M .: B. and., 1912].-657-660 p., 1 l.Il .. -Description of a steam turbine with a partial tributary.To the privilege of a foreigner Ch.A.Parsons (Ch. A. Parsons), in the city of New Cestle on a secret, in England, declared on September 4, 1909 (okhr. St. No. 40670).Group III.No. 20987. February 25, 1912.I. Parsons, h.a..1.People (collection).Electronic copy source: PBOriginal storage location: VPTB FIPS