United States Patent 3337312
Inventors:
George, Perlus Tibor
Publication Date:
08/22/1967
Assignee:
Douglas, Louis Breithaupt
Other Classes:
44/607, 44/603, 44/606
International Classes:
C10L5/44; C10L5/40
US Patent References:
| 2948594 | Molded pulp coated charcoal and charcoal briquettes | | | |