SILVACEL
WOOD FIBER FOR INDUSTRIAL AND COMMERCIAL USES, SUCH AS USE [ AS A BRIDGING MATERIAL IN OIL WELL DRILLING MUD FOR THE PREVENTION AND CONTROL OF LOST CIRCULATION AND USE ] AS AN INGREDIENT IN THE MANUFACTURE OF [ PAPER PRODUCTS, OIL AND OTHER INDUSTRIAL ] FILTERS, [ BATTERY SEPARATORS, SHOTGUN SHELL WADDING ] AND THE LIKE
Expired · February 17, 1954 · 71661245 ·