27 feb

Holograms of Innovations & Patents

Calender 1997 with Holograms of Innovations
September October

1997  Crown Roll Leaf. Inc. Calender 30×46 cm and an embossed hologram 15×15 cm

Crown Roll Leaf. Inc produced a very nice Calender 1997 with several important Patents & Innovations by using embossed holography. The Calender is in a perfect condition since it has never been exposed at any of our Hologram Exhibtions.

Here you can see two historical events in September 1846 and October 1879

The first sewing machine patent was issued on September 10, 1846

The electrical light invented October 21, 1879 by Thomas Alva Edison

 

 

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