Definately not Caterillar... It's an import from some Asian country. Should be a tag, actually there is one under the seat in the pic. Any way there should be a tag with the manufacturer's name about it some where, perhaps on the rear end housing or the frame. Look at the engine block for a tag as well, with manfacturers and country of origin. Once you have this a google search might find out more..
Regards, Kirk