This document appears to contain technical measurements related to clear width and clear height dimensions, possibly for openings such as doorways or passageways. The key parameters include:

• Clear Widths: Various clear width values are indicated, such as 220 mm, 280 mm, 370 mm, 400 mm, 440 mm, 570 mm, and 140 mm. These likely represent the unobstructed horizontal space available.
• Clear Heights: Clear height values are noted, including 350 mm, 380 mm, 450 mm, and combinations such as clear height plus 380 mm or plus 450 mm, suggesting vertical clearance measurements.
• Additional Dimensions: Some measurements appear to be sums of base dimensions plus increments (e.g., "Larghezza vano + 440" or "Altezza vano + 450"), indicating adjusted or total clearances.

The document is fragmented and lacks explicit sectioning or procedural context. It seems to focus on dimensional specifications for openings, emphasizing the importance of both width and height clearances. No procedural instructions, standards, or recommendations are provided.

Summary of critical information:

• Clear width and height measurements are essential parameters.
• Dimensions are given both as base values and as base plus increments.
• Measurements range approximately from 140 mm to 570 mm in width and 350 mm to 450 mm in height.

Due to the fragmented nature and absence of explanatory text, the document primarily serves as a reference for dimensional specifications.