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- IWA Slide Charts - Designs and manufactures custom slide charts, wheel charts, data slides and templates.
- Datalizer Slide Charts, Inc. - Offers custom slide charts, wheel charts, slide rules, and technical calculators as marketing and promotional tools.
- Flexigroup - Produces custom printed and shaped slide charts and wheel charts for promotion and advertising purposes.
- Blundell Harling Limited - Manufacturers of custom imprinted medical slide charts and data wheels for promotion and advertising.
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