• publisher: Chicago [G. D. Clougher & co., printers]
  • creator: Singer, B. (Berthold), b. 1860
  • Keyword: Patent laws and legislation. Trademarks. Copyright.
  • years: 1907.
  • pages: 2 p. l., 576, [iv] p.
  • class: T215
  • download: pdf file