Roger Crawford

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Spokane, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Shredding mill
- Patent number 4,412,659
- Issue date Nov 1, 1983
- Thermoguard Insulation Co.
- Roger Crawford
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...