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.)
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Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Manufactures des Glaces et Produits Chimiques de Saint Gobain SA
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Filing date
Publication date
Application filed by Compagnie de Saint Gobain SA, Manufactures des Glaces et Produits Chimiques de Saint Gobain SAfiledCriticalCompagnie de Saint Gobain SA
Application grantedgrantedCritical
Publication of FR995521ApublicationCriticalpatent/FR995521A/fr
B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
B24B13/023—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made for grinding several lenses simultaneously
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR995521D1945-03-191945-03-19Procédé et dispositifs pour la fabrication des verres d'optique
ExpiredFR995521A
(fr)