cie

17-31-032

leading marks

two or more marks positioned to indicate a leading line, or navigational course, in the direction in which they can be seen in vertical alignment

Note 1 to entry: This entry was numbered 845-11-34 in IEC 60050-845:1987.

Note 2 to entry: This entry was numbered 17-647 in CIE S 017:2011.

Publication date: 2020-12
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