VARISCALE STEREO POINT MARKING INSTRUMENT.
BAUSCH AND LOMB INC ROCHESTER N Y
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The report covers the engineer tests and evaluation of a stereo point marking instrument, an instrument for analytical triangulation to mark points and transfer these points on photographs with large changes in scale and format size. The instrument has a marking accuracy of better than 2 microns and has a high operating speed also, it has flexibility with many ease-of-operation features because of the variable parameters of optics, marking dies, and sizes of photographs. Author
- Cartography and Aerial Photography