In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7971294 | Method and apparatus for changing a pillow or pillowcase Method for changing a pillow in a pillowcase includes providing two members unattached to one another and each having opposed smooth surfaces, inserting the members at least partially into the pillowcase containing a pillow such that the members are each between a r... | 07/05/2011 |
| 7958580 | Method and apparatus for inserting a pillow into a pillowcase An apparatus and method for aiding the insertion of a pillow into a pillowcase. The apparatus or device is flexible and lays flat in a neutral condition. After the pillow is placed onto the device, the device is wrapped around the pillow to compress the pillow, and ... | 06/14/2011 |
| 7246641 | Method and device for inserting a food stuff into a pliable bag A resilient foodstuff bag opener is disclosed, wherein the resilient bag opener is forcibly bent or bowed for easily entering a pliable food stuff bag, and upon relaxation of the bending forces, the bag opener resiliently deforms from its bent configuration to there... | 07/24/2007 |
| 7007324 | Method and device for inserting a pillow into a pillowcase A method and device that provides an easily repeatable way in which to insert pillows into pillowcases. A flexible relatively thin sheet of material is provided that is sized and configured so as to attain a generally U-shaped configuration for insertion into a pill... | 03/07/2006 |
| 6839923 | Method and device for inserting a pillow into a pillowcase A method and device that provides an easily repeatable way in which to insert pillows into pillowcases. A flexible relatively thin sheet of material is provided that is sized and configured so as to attain a generally U-shaped configuration for insertion into a pill... | 01/11/2005 |
| 5673446 | Device to assist the changing of a pillow case A device for holding a pillow in a convenient manner consisting of a pair of flexible poles connected at one end by a resilient rubber strip. At the other end a spring loaded retaining ball captures the pillow between the two poles. A second ball shaped h... | 10/07/1997 |