12 BUILDING OR CONSTRUCTION MATERIAL-NAMELY, ACOUSTIC FELT FOR WALLS AND CEILINGS, VIBRATION ISOLATION AND SOUND ABSORBING FELT, AND FELT WEATHER STRIPPING
FIRST USE JAN. 4, 1968, ON VIBRATION ISOLATION AND SOUND ABSORBING FELT; IN COMMERCE JAN. 4, 1968. FIRST USE JAN. 4, 1968, ON VIBRATION ISOLATION AND SOUND ABSORBING FELT; IN COMMERCE JAN. 4, 1968.