Basic patent and trade-mark laws of the principal belligerent powers together with war legislation, ordinances, and edicts since August 1, 1914, to January 1, 1919, affecting patents, trade-marks, and designs
書誌情報:Basic patent and trade-mark laws of the principal belligerent powers together with war legislation, ordinances, and edicts since August 1, 1914, to January 1, 1919, affecting patents, trade-marks, and designs