![PATENT text written on the display of a calculator on a yellow background with a folder for documents and an alarm clock Stock Photo - Alamy PATENT text written on the display of a calculator on a yellow background with a folder for documents and an alarm clock Stock Photo - Alamy](https://c8.alamy.com/comp/2H3MJNB/patent-text-written-on-the-display-of-a-calculator-on-a-yellow-background-with-a-folder-for-documents-and-an-alarm-clock-2H3MJNB.jpg)
PATENT text written on the display of a calculator on a yellow background with a folder for documents and an alarm clock Stock Photo - Alamy
![PATENT Text Written on the Display of a Calculator on a Yellow Background with a Folder for Documents Stock Photo - Image of paper, board: 226497402 PATENT Text Written on the Display of a Calculator on a Yellow Background with a Folder for Documents Stock Photo - Image of paper, board: 226497402](https://thumbs.dreamstime.com/z/patent-text-written-display-calculator-yellow-background-folder-documents-alarm-clock-226497402.jpg)
PATENT Text Written on the Display of a Calculator on a Yellow Background with a Folder for Documents Stock Photo - Image of paper, board: 226497402
![World Intellectual Property Organization (WIPO) on Twitter: "#TBT to 1974: # Patent for a “miniature electronic calculator” – still in use in offices, classrooms and beyond https://t.co/1TyaZClycL" / Twitter World Intellectual Property Organization (WIPO) on Twitter: "#TBT to 1974: # Patent for a “miniature electronic calculator” – still in use in offices, classrooms and beyond https://t.co/1TyaZClycL" / Twitter](https://pbs.twimg.com/media/DEnfLs5XoAAS9v7.jpg:large)
World Intellectual Property Organization (WIPO) on Twitter: "#TBT to 1974: # Patent for a “miniature electronic calculator” – still in use in offices, classrooms and beyond https://t.co/1TyaZClycL" / Twitter
![Otis King's Patent Calculator, Model L, with instructions in leather case, 26cm max and an Arithma Original Addiator in original leather case and a Mertiverter rule (3) - Maritime, Scientific Instruments & Cameras Otis King's Patent Calculator, Model L, with instructions in leather case, 26cm max and an Arithma Original Addiator in original leather case and a Mertiverter rule (3) - Maritime, Scientific Instruments & Cameras](https://www.davidduggleby.com/files/images/auctions/GUID/28b8b5b6-653d-4df0-88e5-82a8740a0f4f.jpg)
Otis King's Patent Calculator, Model L, with instructions in leather case, 26cm max and an Arithma Original Addiator in original leather case and a Mertiverter rule (3) - Maritime, Scientific Instruments & Cameras
![Amazon.com: Patent Prints - 1888 Calculator Patent Art - Science Patent Art Poster (8.5 x 11) - 236: Posters & Prints Amazon.com: Patent Prints - 1888 Calculator Patent Art - Science Patent Art Poster (8.5 x 11) - 236: Posters & Prints](https://m.media-amazon.com/images/I/71n6w6p0v1L._AC_UF894,1000_QL80_.jpg)