US398741A Machine for grinding rotary disk cutters
Machine for grinding rotary disk cutters . Download PDF Info Publication number US398741A. US398741A US398741DA US398741A US 398741 A US398741 A US 398741A US 398741D A US398741D A US 398741DA US 398741 A US398741 A US 398741A Authority US United States Prior art keywords carriage shaft cutter disk