displaying 1 - 1 results in total 1
Verth, J. Z.; Prymelski, F.
view article (1.0)Xylolith Building Boards and Sheets.Joachim Zur Verth, Hamburg, GermanyU.S. Patent 3,788,870U.S. Patent 3,788,870
January 29, 1974
3 p.