"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| D554181 | Compass | 10/30/2007 |
| 7174656 | Tape measure system A tape measure system for efficiently marking a measured object. The tape measure system includes a housing with a recoil unit containing a length of a tape measure, a dispensing neck extending from the housing for guiding and dispensing the tape measure, and wherei... | 02/13/2007 |
| D512097 | Beam compass | 11/29/2005 |
| D505451 | Compass | 05/24/2005 |
| D504914 | Compass | 05/10/2005 |
| D504913 | Compass | 05/10/2005 |
| D504912 | Compass | 05/10/2005 |
| D492721 | Retractable point compass | 07/06/2004 |
| 6394680 | Multi-purpose writing instrument A multi-purpose writing instrument including a cylindrical casing having an upper end, a lower end, and a cylindrical side wall therebetween. The lower end has a writing tip removably coupled thereto. The cylindrical side wall has an elongated recess form... | 05/28/2002 |
| 4232448 | Broken line drafting templates Drafting template adapted to be juxtaposed on a drawing sheet characterized by a plurality of like spaced lands, in a grid or comb configuration, across which a marking implement may be moved, forming marks on the drawing between the lands and leaving voi... | 11/11/1980 |
| 4170824 | Universal compass A compass for drawing geometric figures including ellipses and polygons of different sizes and shapes. The compass includes an upstanding center post having a lower point which supports the compass on the drawing surface. A disc forming a peripheral cam t... | 10/16/1979 |