Minnesota
| Ribar Company, Inc. | Phone: | (612) 331-6954 | ||
| 2107 Como Ave. S.E. | Fax: | (612) 331-6957 | ||
| Minneapolis, MN 55414 | E-mail: |
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| Walters Climate, Inc. | Phone: | (763) 544-8626 | ||
| 2857 Louisiana Ave. N. | Fax: | (763) 544-8631 | ||
| New Hope, MN 55427 | E-mail: |
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| Thermo-Dyne, Inc. | Phone: | (763) 557-4900 | ||
| 2600 Fernbrook Lane North Suite 124 | Fax: | (763) 557-4916 | ||
| Plymouth, MN 55447 | E-mail: |
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| O'Connor Company | Phone: | (605) 336-0333 | ||
| 4909 N. Lewis Ave. | Fax: | (605) 336-8681 | ||
| Sioux Falls, SD 57104 | E-mail: |
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