Frey, Otto, Dr.
Winterthur
Trademarks, designs and patents
Swiss patent · CH678595 · Inventor
Swiss patent · CH677442 · Inventor
Swiss patent · CH681273 · Inventor
Swiss patent · CH676921 · Inventor
Swiss patent · CH675827 · Inventor
Swiss patent · CH676196 · Inventor
Swiss patent · CH675824 · Inventor
Swiss patent · CH675823 · Inventor
Swiss patent · CH675821 · Inventor
Swiss patent · CH674139 · Inventor
Swiss patent · CH673761 · Inventor
Swiss patent · CH674798 · Inventor
Swiss patent · CH674306 · Inventor
Swiss patent · CH674140 · Inventor
Swiss patent · CH672985 · Inventor
Swiss patent · CH673087 · Inventor
Swiss patent · CH672587 · Inventor
Swiss patent · CH672589 · Inventor
Swiss patent · CH672588 · Inventor
Swiss patent · CH672419 · Inventor
Swiss patent · CH673217 · Inventor
Swiss patent · CH671689 · Inventor
Swiss patent · CH671692 · Inventor
Swiss patent · CH671691 · Inventor
Swiss patent · CH670198 · Inventor
Swiss patent · CH669903 · Inventor
Swiss patent · CH669724 · Inventor
Swiss patent · CH668900 · Inventor
Swiss patent · CH668693 · Inventor
Swiss patent · CH667801 · Inventor
Swiss patent · CH667587 · Inventor
Swiss patent · CH668703 · Inventor
Swiss patent · CH665555 · Inventor
Swiss patent · CH665554 · Inventor
Swiss patent · CH665553 · Inventor
Swiss patent · CH665770 · Inventor
Swiss patent · CH665348 · Inventor
Swiss patent · CH665349 · Inventor
Swiss patent · CH664081 · Inventor
Swiss patent · CH661430 · Inventor
Swiss patent · CH661431 · Inventor
Swiss patent · CH658988 · Inventor
Swiss patent · CH659580 · Inventor
Swiss patent · CH658184 · Inventor
Swiss patent · CH658185 · Inventor
Swiss patent · CH657772 · Inventor
Swiss patent · CH657825 · Inventor
Swiss patent · CH657980 · Inventor
Swiss patent · CH656525 · Inventor
Swiss patent · CH657266 · Inventor
Swiss patent · CH656526 · Inventor
Swiss patent · CH652912 · Inventor
Swiss patent · CH655650 · Inventor
Swiss patent · CH652911 · Inventor
Swiss patent · CH653246 · Inventor
Swiss patent · CH652914 · Inventor
Swiss patent · CH651800 · Inventor
Swiss patent · CH651463 · Inventor
Swiss patent · CH648747 · Inventor
Swiss patent · CH648748 · Inventor
Swiss patent · CH645265 · Inventor
Swiss patent · CH644511 · Inventor
Swiss patent · CH639553 · Inventor
Swiss patent · CH633957 · Inventor
Swiss patent · CH632657 · Inventor
Swiss patent · CH632658 · Inventor
Swiss patent · CH632923 · Inventor
Swiss patent · CH632922 · Inventor
Swiss patent · CH630251 · Inventor
Swiss patent · CH622943 · Inventor
Swiss patent · CH618865 · Inventor
Swiss patent · CH615585 · Inventor
Swiss patent · CH612586 · Inventor
Swiss patent · CH598806 · Inventor
Swiss patent · CH593054 · Inventor
Swiss patent · CH592445 · Inventor
Swiss patent · CH593053 · Inventor