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Geometrical instruments

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
033501000 GAUGE 563
033700000 DISTANCE MEASURING 260
033227000 STRAIGHT-LINE LIGHT RAY TYPE 239
033300000 INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA 187
033403000 STRAIGHTEDGE TYPE 116
033180100 SCRIBER 41
033001000 MISCELLANEOUS 31
033002000 APPAREL 14

Patent applications in class Geometrical instruments

Patent applications in all subclasses Geometrical instruments