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Patent class list (only not empty are listed)

Excavating

Subclass of: 037 - Excavating

Deeper subclasses:

037301000 - LAND CLEARER (1)
037196000 - SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE (50)
037304000 - SELF-LOADING VEHICLE (2)
037307000 - BENEATH A BODY OF WATER (E.G., DREDGER) (11)
037347000 - DITCHER (24)
037381000 - ROAD GRADER-TYPE (2)
037394000 - CABLE-OPERATED (E.G., DRAGLINE) (3)
037403000 - COMBINED OR CONVERTIBLE (26)
037411000 - SCOOP OR EXCAVATING AND TRANSPORTING CONTAINER (17)
037446000 - DIGGING EDGE (24)
037142500 - DITCH FILLER (2)
037189000 - ROTARY DIGGER (2)
037195000 - PROCESSES (2)
037466000 - MISCELLANEOUS (1)