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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| Number | Title | Issue Date |
| 6244765 | Vibration isolating attachment system for inkjet carriages An inkjet printing mechanism includes a vibration isolating attachment system for securing a drive belt to an inkjet printhead carriage for increasing print quality by isolating the carriage from multi-directional vibrations generated by a carriage drive ... | 06/12/2001 |
| 3985220 | Tabulator apparatus for a typewriter carriage moving in steps of different length A tabulator apparatus for a typewriter whose carriage can be manually set to make carriage steps of different length corresponding to the width of types of different exchangeable type carriers. The apparatus includes a manually shiftable transmission conn... | 10/12/1976 |
| 3978966 | Tabulation operation sensing unit for automatic typewriter A unit for sensing a tabulation operation in an automatic typewriter. An interconnecting member is disposed between a typewriter mainspring and a fluid clutch. This member has a disk portion nested in a hole formed in a mainspring housing. An eccentric pi... | 09/07/1976 |
