• BS 2457:1975

BS 2457:1975

Specification for protractors for drawing office use

BSI Group , 01/31/1975

Publisher: BS

File Format: PDF

$80.00$160.02


Includes preferred sizes, for circular and semi-circular protractors made from transparent plastics. Specifies qualities of suitable materials.Cross References:BS 3693:Part 1Replaces BS 2457:1954.

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