Thermal insulating panel

Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source

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Details

105357, 220 83, 220421, 220469, 428 75, 428 76, 428332, 428461, 428920, B32B 106, B32B 302

Patent

active

047450150

ABSTRACT:
An improved vacuum panel of double wall construction comprising:

REFERENCES:
patent: 2164143 (1939-06-01), Munters
patent: 2643021 (1953-06-01), Freedman
patent: 3179549 (1965-04-01), Strong et al.
patent: 3225954 (1965-12-01), Herrick et al.
patent: 3295709 (1967-01-01), Herrick et al.
patent: 3480464 (1969-11-01), Lacy
patent: 3916048 (1975-10-01), Walles
patent: 3993811 (1976-11-01), Walles
patent: 4313996 (1982-02-01), Newman et al.

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