Hologram of Innovation & Patent

Calender Embossed holograms – Innovations & Patents

Crown Roll Leaf Inc 1997  Holograms of Patents & Innovations

A Telephone patent was issued to Alexander Graham Bell on March 7, 1876

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 Exhibitions.

Here you can see three historical events March 1876, April 1940 and May 1940.

The first Electron Microscope was developed on April 20, 1940

The first Electron Microscope was developed on April 20, 1940

The first successful Helicopter flight in U.S. was on May 15, 1940

Dela