Instruments

On April 20, 1886, Alberta Mary Frances Caspar of London was granted a patent for developing a novel method to imitate stained glass. The invention included an adhesive surface designed to be applied directly to glass and a compound to preserve the coloring without alteration.

On May 16, 1911, Alexandra Gräfin von Dyhrn of Breslau, in the German Empire, was awarded a patent for developing a novel packaging that used a thin layer of confection.