MULTI-WAVE PACKING MATERIAL AND A DEVICE FOR UTILIZING THE SAME
United States Patent 3540702
Inventors:
Uyama, Kiyoshi
Publication Date:
11/17/1970
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Assignee:
NIPPON KOKAN KK
Primary Class:
Other Classes:
261/DIG.011
International Classes:
B01J19/32; F28C1/00; F28F25/08; F28F25/00; B01F3/04