4175 - Marking of weights and measures "not legal for trade."

     § 4175.  Marking of weights and measures "not legal for trade."        It shall be conclusively presumed that a weight or measure or     weighing or measuring device is intended for use in trade or     commerce if it is manufactured, offered or exposed for sale or     sold for use in this Commonwealth, or is used therein, unless it     shall bear a plain, legible, conspicuous and permanent statement     to this effect: "Not legal for trade." It shall be unlawful to     use in trade or commerce any weight or measure or weighing or     measuring device which is marked as described above, provided,     however, that, whenever it shall appear to the satisfaction of     the bureau that any type of weight or measure or weighing or     measuring device is such as to render it impracticable to mark     it as required by this section or is of such design and     construction that it is obviously not intended for use in trade     or commerce, the bureau shall furnish a certificate to that     effect to any manufacturer applying for the same, and such types     of weights and measures and weighing and measuring devices need     not be marked as required by the provisions of this section.