Coil form and method
United States Patent 3314133
US Patent References:
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Inventors:
Stahl, William F.
Publication Date:
04/18/1967
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Assignee:
Stahl, William F.
Primary Class:
29/605
Other Classes:
493/299, 138/144, 156/171, 156/190, 493/276, 336/198, 156/189
International Classes:
F16L9/00; H01F5/02
US Patent References:
2711982Method of making rolled phenolic resinbonded paper tubing
2828239Method of continuously forming tubing of plastic material