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Patent applications and USPTO patent grants for National Rolling Mills Company.The latest application filed is for "fire-rated ceiling grid cross joint".
Patent | Date |
---|---|
Fire-rated ceiling grid cross joint Grant 4,106,878 - Jones August 15, 1 | 1978-08-15 |
NCAGE Code | 4P509 | NATIONAL ROLLING MILLS CO |
CAGE Code | 4P509 | NATIONAL ROLLING MILLS CO |
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