Improvements relating to Optical Instruments
21,456. Fotescu, G., and Heilbrunn, G. Sept. 21, 1908, [Convention date]. Void. [Published under Section 91 of the Act.] Optical systems. - A number of objectives mounted in one plane are provided each with a divergent lens, which, it is stated, can be adjusted to cause the images to coincide and pr...
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| Zusammenfassung: | 21,456. Fotescu, G., and Heilbrunn, G. Sept. 21, 1908, [Convention date]. Void. [Published under Section 91 of the Act.] Optical systems. - A number of objectives mounted in one plane are provided each with a divergent lens, which, it is stated, can be adjusted to cause the images to coincide and produce a single image. |
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