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CPC
B28D3/005

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B28Stoneworking B28DWORKING STONE OR STONE-LIKE MATERIALS B28D3/00Dressing mill discs or rollers

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B28D3/005Tools therefor

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Patents Grantslast 30 patents

Information Patent Grant
1340589
- Patent number 1,340,589
- Issue date May 18, 1920
- B28 - WORKING CEMENT, CLAY, OR STONE