Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Application No. | Application Title | Issue Date |
| 20100116160 | Printing Unit With Imprinting Device And Printing Method A printing unit (1, 2) in a web-fed rotary printing press for imprinting both sides of a printing stock web (7) with process colors cyan and/or magenta and/or yellow and/or black (CMYK), wherein at least one imprinting device (3) is arranged at the ... | 05/13/2010 |
