Title:
Thermal insulated pipe
United States Patent 2532587
US Patent References:
/0360782.html
- - 0360782

/1297047.html
- - 1297047

Insulated pipe
- - 1709844

Monolithic underground insulation
- - 1797443

Heat insulation
- - 2041911


Inventors:
Williamson, Thomas F. M.
Publication Date:
12/05/1950
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Assignee:
Alexander, Isenberg H.
Primary Class:
138/149
Other Classes:
248/73, 138/148, 249/90, 138/151
International Classes:
F16L59/12; F16L59/14; F16L59/15; F16L59/00
US Patent References:
2068180Insulating material and method of applying and sealing the same
2243427Tube covering
2324181Pipe covering
2330966Fluid distribution system
2405021Insulated pipe
Foreign References:
GB319004A