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 |
| 6168322 | Apparatus for processing exposed photosensitive elements Apparatus for processing exposed photosensitive elements comprising: a cylindrical container having an open end and having a plurality of circumferentially disposed containment vessels for containing processing fluids; an index plate which is rotatably mo... | 01/02/2001 |
| 5752123 | Automatic X ray developing device An automatic X ray developing device comprises a base platform, four support legs disposed beneath four corners of the base platform respectively, a rotating disk and a motor disposed beneath the base platform, a plurality of rollers disposed on the base ... | 05/12/1998 |
| 5619744 | Film processor A film processor includes a cabinet having a processing cavity divided into a series of processing stations containing film processing fluid. A pair of support rails extend longitudinally over the processing cavity. A photographic film carrier is loaded a... | 04/08/1997 |
| 5475462 | Photographic processes In conventional photographic processes, material being processed follows a predetermined sequence of steps, for example, developer, bleach, first wash, fixer, second wash, and stabilizer. This requires the provision of at least two wash tanks as the film ... | 12/12/1995 |
| 5285230 | Processing device A device for processing objects is provided which comprises a series of processing stations and coil means for transporting objects to be processed wherein the axis of the coil is vertically disposed above each of the series of processing stations. The pr... | 02/08/1994 |
| 5257059 | Developing processor The processor is equipped with a helicoidal spiral tub (2). A special telescopic arm (24) mounted on the central shaft of the tub allows the material to be developed to pass through the tanks that make up the tub. The arm is L-shaped and the material to b... | 10/26/1993 |
| 5166720 | Dental X-ray film developing machine A dental X-ray film developing machine is described. The machine has a cylindrical housing, a motor fixed on the housing, an arm for being driven by the motor, and a film holder for being brought into detachable engagement with the arm whereby development... | 11/24/1992 |
| 5132717 | Film processor A processor for developing film chips is provided which comprises a series of tanks for developer solutions and coil means for transporting film may be suspended wherein the axis of the coil is vertically disposed above each of the series of tanks. The pr... | 07/21/1992 |
| 5005036 | Processing apparatus Processing apparatus for photographic film, particularly intraoral xray film, in which the various processing stations are positioned in a circle about a central rotatable column. The column has an external spiral groove in which rides a pin carried by, a... | 04/02/1991 |
| 4978987 | Apparatus for development and after-treatment of photographic material to be developed An apparatus for developing and after treatment of photographic development material includes a plurality of containers arranged one after another in a row with the containers having open tops. The containers are arranged to receive different treatment fl... | 12/18/1990 |
| 4853729 | Dental X-ray film developing machine A dental X-ray film developing machine is described. The machine has plural compartments arranged along a predetermined travelling path of a dental X-ray film to be developed. A film-mounting member is provided to mount the film detachably thereon. The fi... | 08/01/1989 |
| 4769661 | Disk film developing method and apparatus The main object of the invention is to provide a disk film developing apparatus which has a developing process section of non-light shielding construction having substantially no darkroom section and in which one or more disk films are developed while bei... | 09/06/1988 |
| 4655575 | Apparatus for transporting disc films An improved apparatus for transporting disc films in a developing apparatus which includes a series of treatment liquid baths. The apparatus includes a support block by means of which a movable rail is supported so as to allow a hanger to slide therealong... | 04/07/1987 |
| 4607930 | Device for transferring the film holders in a film developer Device for transferring the film holders in a film developer which was described by the Italian patent application No. 45731 A/82 of the same Applicant. Such a device is constituted by an arm (1) formed by two rods, a first fixed rod (2) which is applied ... | 08/26/1986 |
| 4579437 | Apparatus for processing photographic films including dental x-ray films An apparatus for processing radiation sensitive film, particularly dental x-ray film, has a housing with tanks located thereon capable of holding developer, fixer and wash. An arcuate shaped track is located on the housing in association with the tanks. A... | 04/01/1986 |
| 4531821 | Item transporting A transport mechanism has two driven gears driven by a driving gear therebetween and having pivotally attached cranks at pivot points maintained at the same elevation as the driven gears rotate. The upper end of the cranks are attached to a horizontal mov... | 07/30/1985 |
| 4290687 | Apparatus for developing photographed film An apparatus for developing a photographed film comprises a turn table on which processing liquid cups are mounted, a rotary device for rotating the film to be developed, and a device for descending and ascending the rotary device into and out of the liqu... | 09/22/1981 |
| 4011573 | Apparatus for developing dental X-ray films An apparatus for developing dental X-ray film of the dip and dunk type, in which the apparatus is provided with a plurality of processing stations disposed in an arcuate path that is concentric about a vertical axis, which stations comprise loading, devel... | 03/08/1977 |