Filters, filter elements, filter cartridges and filter inserts for filtering oil or other lubricants, fuels, coolants, chemicals, air and structural parts therefor which are used in connection with machinery, motors, engines, agricultural implements and ship motors; filter apparatus and devices, namely, simplex filters, duplex filters, automatic filters, band filters in the nature of oil, fuel and lubricant filters, backflush filters, filtrators in the nature of oil, fuel and lubricant filter...