By virtue of the Patent Act, B.E. 2522 , which was amended by the Patent Act (No. 3) B.E. 2542, the Director-General of the Department of Intellectual Property issued this petty patent to
Rely on the power in the patent act. Doctor 2522<br>Amended by the Patent Law (No.3), article 6. Doctor 2542<br>The Director of Intellectual Property awarded this patent.