Document 2jm5aVdQLNwMwak3oDeKg1jVR

H ; b 1' '3 \l i w A >5' . r,PR s/ i c ME"RCc HANDISING BULLETIN SOUND CONTROL Ur. J. K. T/ise Manager Patent Department Dept. 157 April 2, 1964 j\ I.S.C. 564 0* AIRSON & MOTIF'D ACOUSTONE 120 You have all received a copy of the UL test book covering the two-hour Airson Acoustone test. Now we announce the availability of the Design 85 UL Label at our Gypsum Plant. In the future all orders for the following products will bear this two-hour UL Label. (1) Airson Acoustone 120 - both A-2 and A-5. (2) Motif'd Acoustone - all patterns shown in the UL book. By special notation on the 379, this label may be used in place of the standard 120 label if a beam rated test is required. R. F. Hopper Manager Industrial Sound Control BB028 1711 Sent to: Industrial List No. 2 6&31: United Stotes Gypsum Company