...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 4352543 | Lens barrel In a lens barrel for a photographic camera or the like employing operating rings made of synthetic resin, the operating rings are provided with slots on the periphery thereof. The slots are preferably provided to extend in the direction perpendicular to t... | 10/05/1982 |
| 4349244 | High quality objective using air bearing The invention is directed to improving alignment of optical components within an overall objective cylinder along an optical axis by providing an outside source of compressed air which flows into and out of the outer hollow cylinder of the objective, thro... | 09/14/1982 |
| 4302076 | Optical element mounting device A lens holding assembly includes an annular resilient member which is arranged within the inner circumferential surface of a lens barrel between confronting faces of adjacent lenses or between a lens and a lens carrying ring. The resilient member has a di... | 11/24/1981 |
| 4226505 | Holding device for a lens of an interchangeable lens assembly A diaphragm linkage device for interchangeable lenses wherein more than three column-shaped guide members with a groove consisting of plastic material with a small friction coefficient are provided around the optical axis of the barrel for the interchange... | 10/07/1980 |
| 4111530 | Microscope objective mount A novel and advantageous microscope objective mount is provided. Said mount can be screwed to a microscope and more particularly to the objective turret or nosepiece. It is provided with a rotatable outer sleeve held on the mount, the sleeve being held by... | 09/05/1978 |
| 4066330 | Coupler for joining optical devices A coupler for joining optical devices. It receives a peripheral flange. The coupler includes a socket to receive the flange. Each of a plurality of radially movable retainer studs has a shoulder which can project through a respective aperture in the side ... | 01/03/1978 |
| 4050037 | Laser beam alignment A laser tube is rigidly mounted within a cylindrical metallic housing, and end rings are attached thereto. Each end ring has an opening for passage of the beam, and a plurality of radially disposed openings. Inside the housing, a smaller adjustment ring i... | 09/20/1977 |