with optical projection (G01C11/26 takes precedence)

Full Title

Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying > Interpretation of pictures > by comparison of two or more pictures of the same area > the pictures being supported in the same relative position as when they were taken > with optical projection (G01C11/26 takes precedence)

Child Classifications

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• G01C 11/16 in a common plane
• G01C 11/20 in separate planes