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...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 |
| 7318330 | Mobile device and a process for the production of glass The present invention relates to a float bath comprising a transport assembly and/or an adaptor for producing glass by a float-forming process. ... | 01/15/2008 |
| 7155937 | Method and device for bending a glass sheet A method for bending a sheet of glass involving heating the sheet of glass to a softening temperature, transporting the sheet of glass in an essentially horizontal path as far as a station for bending the sheet of glass between two forms, shaping the sheet of glass ... | 01/02/2007 |
| 6526781 | Method for roll forming glass sheets A method for roll forming a heated glass sheet utilizes a forming conveyor (62) including forming rolls (66) that are pivotally moved upwardly between horizontal rolls (46) of a horizontal conveyor (44) on opposite sides of a centerline (C/L) of the horiz... | 03/04/2003 |
| 6318128 | Method of making an article having a gradient composition According to the invention, a) at least the first and second compositions of this material in the fluid phase are prepared, b) a sheet (61) of the first composition is poured continuously onto a flat support (4), c) a sheet (62) of t... | 11/20/2001 |
| 5970747 | Apparatus for forming glass sheets with coaxial cavities A glass ceramic or glass-ceramic sheet is formed by progressively reducing the thickness of the sheet by passing the sheet between successive pairs of counter-rotating rollers. The average viscosity of the sheet is maintained between 5×104 and... | 10/26/1999 |
| 5948130 | Method and apparatus for making large-scale precision structures in flat glass Flat glass provided with precision structures is required for precision applications, especially for glasses with optical properties, for example for modern flat display screen glass. A method for forming precision structures in or on flat glass includes ... | 09/07/1999 |
| 5022905 | Method and apparatus for coating glass An apparatus for depositing onto the surface of a moving ribbon of hot glass a coating formed from the reaction of at least two gaseous reactants. The apparatus includes an open-faced coating chamber in which the gaseous reactants are caused to flow in co... | 06/11/1991 |
| 3992182 | Conveying sheets at non-uniform speed A system for conveying a series of glass sheets at a non-uniform speed through sheet treatment apparatus comprising a plurality of treatment stations. Longitudinally spaced conveyor rolls are rotated at a first speed at a first sheet treatment station whe... | 11/16/1976 |
