Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 6951798 | Method of bonding a stack of layers by electromagnetic induction heating A method of bonding multiple layers is provided. The method includes the steps of stacking the multiple layers on top of each other and volumetrically heating the stack of multiple layers to a predetermined temperature. It is preferred that the stack is heated by el... | 10/04/2005 |
| 5448041 | Process for the assembly of at least two parts made from a composite material incorporating a ceramic or vitroceramic matrix reinforced by ceramic fibres A process for assembling at least two parts made from a composite material incorporating a ceramic or vitroceramic matrix reinforced by ceramic fibers. A continuous connection between these parts is achieved by approaching two of the parts along their res... | 09/05/1995 |
| 4778556 | Apparatus for correcting printed circuit boards A method and apparatus are shown for use in adding electrical connections to existing printed circuit boards. To this end, apparatus in the form of a multilayered pad is provided which has an adhesive layer over at least part of one face which is responsi... | 10/18/1988 |
| 4623770 | Method of imparting crease to polyester fiber goods The portion to be creased of polyester fiber goods is subjected to pressing and high-frequency treatment by means of a press bar attached to an upper electrode of a high-frequency welding machine, whereby a solid crease can be imparted to the polyester fi... | 11/18/1986 |
