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DEREFA ETABLISSEMENT POUR LE D

Overview
  • Total Patents
    30
About

DEREFA ETABLISSEMENT POUR LE D has a total of 30 patent applications. Its first patent ever was published in 1960. It filed its patents most often in France, Canada and Germany. Its main competitors in its focus markets machine tools, machines and mechanical elements are DEREFA ETS, BINNS JACK N and HENDEY MACHINE COMPANY.

Patent filings in countries

World map showing DEREFA ETABLISSEMENT POUR LE Ds patent filings in countries
# Country Total Patents
#1 France 15
#2 Canada 11
#3 Germany 4

Patent filings per year

Chart showing DEREFA ETABLISSEMENT POUR LE Ds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Deflandre Rene 13
#2 Careje Michel 2

Latest patents

Publication Filing date Title
DE1262928B Lighting device on a movable switch box for machine tools
DE1232802B Machine tool for machining large and heavy workpieces
CA729853A Milling cutters
CA689255A Slideway protection system in machine tools and the like
CA776896A Boring and milling machine provided with surfacing and boring device for very large workpieces
CA770281A Movable control boxes for controlling machine tools
CA674085A System for lubrication of machine components
CA737685A Combination machine tool for circular workpieces
CA788879A Rotatable devices for supporting parts to be machined
CA709154A Balancing device for a machine part free to slide longitudinally on slides on a horizontal beam
CA740634A Structure of machine-tools and the like
CA798733A Illuminating devices carried by movable control consoles for machine-tools
CA769500A Lubricating systems of screw and nut devices for machine elements drive