BISON LABORATORIES, INC.

A O-K

OUR TRADE-MARK CONSISTS OF THE LETTERS A O K. THESE LETTERS, CONSTITUTING OUR TRADE-MARK, ARE ALWAYS USED BY US IN THE ORDER NAMED. WE HAVE, HOWEVER, DIFFERENT FORMS OF USING THE MARK. ONE FORM IS THE USE OF THESE LETTERS SEPARATED BY HYPHENS AND USED IN A STRAIGHT LINE, AS SHOWN IN THE UPPER PORTION OF THE FACSIMILE. THEY ARE USED ALSO IN THE FORM AS SHOWN IN THE LOWER PORTION OF THE FACSIMILE. WHEN USED IN THIS WAY, THE LETTERS ARE PLACED UPON A SHIELD, BUT NOT PLACED THEREON IN A DIRECT LINE, BUT IN THE MANNER INDICATED IN THIS PORTION OF THE FACSIMILE TO WIT, THE LETTER A ABOVE AND BETWEEN THE LETTERS O K.;A OKAY;METAL-POLISH;A OK;

CHEK BAC

GERMICIDAL DISINFECTING AGENT;THE WORD CHECK IS DISCLAIMED APART FROM THE MARK SHOWN.;CHECK BACK;

FLOOR-SORB

PARTICULATE LIQUID-ABSORBING MATERIAL FOR CLEANING FLOORS AND SIMILAR SURFACES;