Form and duration of license for use of weights and measures.
Section 279
SEC. 279. Form and duration of license for use of weights and measures. — The receipt for the fee charged for the sealing of weights and measures shall serve as a license to use such instrument for one year from the date of sealing, unless deterioration or damage which renders the weight or measure inaccurate occurs in that period. When a license is renewed, the same shall expire on the same day and month of the year following its original issuance. Such license shall be preserved by the owner and, together with the weights and measures covered by the license, shall be exhibited on demand of any internal- revenue officer.