US2540112A - Abrasive wheel - Google Patents
US2540112A US135691A US13569149A US2540112A US 2540112 A US2540112 A US 2540112A US 135691 A US135691 A US 135691A US 13569149 A US13569149 A US 13569149A US 2540112 A US2540112 A US 2540112A Authority US United States Prior art keywords abrasive wheel sheet fibrous resin Prior art date 1949-12-29 Legal status (The legal status is an assumption and is not a legal …
Get Price