Title:
MANUFACTURE OF VALVE BAGS
Document Type and Number:
United States Patent 3548722
Inventors:
Jones, Elwyn David
Rowley, Edward Kenneth
Shepherd, Douglas Reynolds
Rowley, Edward Kenneth
Shepherd, Douglas Reynolds
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Publication Date:
12/22/1970
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Referenced by:
Export Citation:
Assignee:
Canadian, Ind
Primary Class:
Other Classes:
383/54, 493/213, 493/11, 493/209
International Classes:
B31B29/84; B31B29/00; B31B1/00