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Rulex 30cm 12 inch Flat Oval Metric Scale Ruler 1:1 1:100 1:5 1:50/1:20 1:200 1:1250 1:2500 - UK manufactured : Amazon.co.uk: Stationery & Office Supplies
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Mr. Pen- Architectural Scale Ruler, 12" Plastic Architect Scale, Triangulare Scale, Scale Ruler for Blueprint, Triangle Ruler, Drafting Ruler - Walmart.com
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