FR641553A -
Machine for straightening, sanding, polishing flat surfaces and pulling thick wood, metals, plastics, stones or other materials
- Google Patents
Machine for straightening, sanding, polishing flat surfaces and pulling thick wood, metals, plastics, stones or other materials
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B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
B24B7/224—Portal grinding machines; Machines having a tool movable in a plane
FR641553D1927-08-061927-08-06
Machine for straightening, sanding, polishing flat surfaces and pulling thick wood, metals, plastics, stones or other materials
ExpiredFR641553A
(en)
Machine for vertically making the grooves in the transverse direction of a piece of wood using ordinary mortising machines and combination machines fitted with a mortiser
Heating improvements of heavy tars and bitumens and mixtures thereof, particularly applicable for use in the treatment or establishment of roads and the like