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...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 7093334 | Machining unit with orientable spindle-axis for milling and boring operations A machining unit has a spindle-carrier structure, which can be oriented around a vertical axis. ... | 08/22/2006 |
| 6703583 | Method and system for laser welding of two or more overlapped metal sheets, and device for clamping the sheets used in this method Welding of two or more steel sheets, at least one of which has a protective layer of a material with a low vaporization temperature, is carried out by directing a laser beam on two overlapped flanges of the sheets, which are clamped in position during wel... | 03/09/2004 |
