...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7064301 | Electric heater The present invention relates to an electric heater, which electrically and mechanically protects heating means from the outside, increases heating value and thermal conductivity by increasing contact efficiency among components, and improves assembly efficiency and... | 06/20/2006 |
| 6874575 | Air conditioning housing for an air conditioner of an automobile Disclosed herewith is an air conditioner housing for automobiles and air conditioner using the same. The air conditioner housing includes a housing body having evaporator and heater core accommodating spaces. Upper and lower air passages are defined by partitioning ... | 04/05/2005 |
| 6815400 | Method for forming solid film lubricant A method for forming a solid film lubricant on the surface of a part having an arbitrary shape is provided, comprising preparing a carrier having a predetermined shape and size; coating lubricant powder on the carrier; and coating the lubricant powder over the surfa... | 11/09/2004 |
| 6814805 | Film coating apparatus and method for coating using the same A film coating apparatus has a nozzle body and a coating material spreading element having an injection hole communicated with the inside of the nozzle body, and formed integrally with the nozzle body. The apparatus further has a rotation support element and a fixin... | 11/09/2004 |
| 6786278 | Compact air conditioner for automobiles An air conditioner includes an evaporator and a heater core. A first partition is positioned between the evaporator and the heater core, and provided with a first blowing opening for allowing air to detour the heater core and a second blowing opening for blowing air... | 09/07/2004 |
| 6782944 | Air conditioner for vehicles An air conditioner for vehicles is disclosed. This air conditioner feeds recirculation and fresh air in a separate air feeding or a mixed air feeding using a single intake duct and a single intake control door, thus improving its heating and defrosting efficiency du... | 08/31/2004 |
| 6287078 | Axial flow fan An axial flow fan is disclosed. The axial flow fan comprises a hub, a plurality of blades extending radially outwardly from the hub, and an outer band surrounding peripheral ends of the blades. The median sweep angle of each blade increases gradually from... | 09/11/2001 |