Patents
[1] |
J. Bossart-Bächli Nadelzirkel. Patent Nr. CH 23105. Eidgenössisches Amt für geistiges Eigentum (1902). |
[2] |
J. Bossart-Bächli Punktierreissfeder. Patent Nr. CH 26004. Eidgenössisches Amt für geistiges Eigentum (1902). |
[3] |
J. Bossart-Bächli Nadelzirkel. Patent Nr. DE 144541. Kaiserliches Patentamt (1902). |
[4] |
J. Bossart-Bächli Needle Compasses. Patent No. US 710242. United States Patent Office (1902). |
[5] |
J. Bossart-Bächli Dotting Pen for Drawing. Patent No. US 715007. United States Patent Office (1902). |
[6] |
Wild & Cie. Zirkelkopf-Spanngriff. Patent Nr. CH 16587. Eidgenössisches Amt für geistiges Eigentum (1898). |
[7] |
J. Wild Head of Compasses. Patent No. US 621006. United States Patent Office (1899). |
[8] |
J. Wild Drawing Compasses. Patent No. US 741425. United States Patent Office (1903). |