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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 |
| 6738574 | Camera system and accessory device In a camera system according to the invention, a camera body and an interchangeable lens have respective identification data tables that are congruous with each other. As an appropriate data address is indicated to the interchangeable lens by the camera body, an ide... | 05/18/2004 |
| 5843604 | Method and apparatus for sharpening camera-recording pictures This invention concerns the sharpening of camera-recorded pictures by flattening conventional photographic film as well as photographic film fitted in the manner of the invention with detachable, electrically and/or magnetically force-field responsive lam... | 12/01/1998 |
| 5541689 | Plate frame for use in large-format camera enabling mounting of a smaller size film holder A film-size-interchangeable sheet film holder for a camera using a large-sized film holder for accommodating sheet films has a structure which allows use of a small-sized film holder for smaller films without requiring replacement of a rear camera frame (... | 07/30/1996 |
| 5144461 | Portable holographic recording apparatus A holographic camera assembly includes a portable, light-tight housing having a removable cover to access the interior thereof. Camera components are positioned upon an optics tray within the housing which is vibrationally isolated from the housing. The f... | 09/01/1992 |
| 4860042 | Film package and device for loading films A film package has a flexible light-shielding bag with a stack of sheet films stored therein, the flexible light-shielding bag having at least opposite ends sealed in a direction in which the flexible light-shielding bag can be pulled out, said opposite e... | 08/22/1989 |
| 4337596 | Sliding door actuating mechanism An actuating mechanism for sliding doors provided on the passenger side of conventional panel-type trucks, commonly called vans, is intended to be either installed in the vehicle at the time of its original manufacture, or installed at any later time, wit... | 07/06/1982 |
| 4166684 | Three dimension camera having a film holder A removable film holder is provided for a photographic camera for taking three dimensional photographs in an arrangement wherein a lenticular screen is moved relative to photosensitive material during exposure. A pressure plate is mounted on a housing. Me... | 09/04/1979 |
| 4087178 | Sheet-holding cassette for copying machine A sheet-holding cassette for a copying machine is formed as a box containing a stack of copy sheets. This box is adapted to be held in the machine with the uppermost sheet of the stack engageable with the paper-advance roller of the machine. A slot is pro... | 05/02/1978 |
| 4074297 | Duplex cut film holder A holder for so-called cut photographic film sheets into which the inserted film sheet is provided with an initial position that is readily manually achieved. Specifically, the sides of the film sheet during insertion are advantageously located beneath th... | 02/14/1978 |
