Short description: In Russian (ask us if in doubt).Appendix to # 12 of the bulletin of the State Bureau of Further Registration of Inventions under the State Plan of the Union of Soviet Socialist Republics. Leningrad Publishing House on Invention under the State Plan of the Union of Soviet Socialist Republics 1937 54 p. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalbb66ae1418f05b002