Sectional Views and Projections Finish Marks

Duration: 22

Creator: United States Office of Education

Format: 16mm

Color: B&W

Description: Shows the different types of lines--dimension, center, cross-section, and object; the projection of a sectional view; the locations and uses of finish marks; and the meanings of standard cross-section lines denoting types of materials.

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Indiana University Library Moving Image Archive

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Original permalink · Record added: 2024-04-22 21:49:01