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Walczak; Andrzej
Ober-Morlen, DE
No. of patents:

Patent Number Title Of Patent Date Issued
4583823 Device for focussing lens April 22, 1986
The lens holder of a lens focussing device is axially movable in a lens sleeve supported on a film holder on which it can slide. The rim of a focussing wheel is accommodated in the space between the collar of the lens and the top face of the lens sleeve. The rim thickness increases u
4566739 Cross-slide guide for a microfilm reader January 28, 1986
Guide rails having a guide section greater in width than in height with rectangular cross-section are provided for a cross-slide guide. Arcuate guide surfaces of sliding pads embrace the guide section in such a manner that they make contact with the two upper longitudinal edges of the gu

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