Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Balfour Beatty PLC
Original Assignee
BICC PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BICC PLCfiledCriticalBICC PLC
Application grantedgrantedCritical
Publication of FR928749ApublicationCriticalpatent/FR928749A/fr
B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
B24B5/36—Single-purpose machines or devices
B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
B24B5/485—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies using grinding wires or ropes
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR928749D1941-03-271946-04-24Machines perfectionnées pour rectifier et polir des matrices pour l'étirage de filmétallique
ExpiredFR928749A
(fr)