The information given and the recommendations made herein are based on our research and are believed to be accurate but no guaranty of their accuracy is made. In every case, before using any product in full scale production, we make our own tests to determine to our own satisfaction whether the product is of acceptable quality and is suitable for our customers particular purposes under our operating conditions. No representative of ours has any authority to waive or change the foregoing provisions but, subject to such provisions, our engineers are available to assist our customers in adapting products to their needs and to the circumstances prevailing in their business. Nothing contained herein shall be construed to imply the non-existence of any relevant patents or to constitute a permission, inducement or recommendation to practice any invention covered by any patent, without authority from the owner of this patent. We also expect customers to use our products in accordance with the guiding principles of the governing process, standard, or Manufacturers recommendations.