71661245
Feb 17, 1954
May 22, 1956
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
Chemicals