Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Diverse types
Patent
1981-01-12
1982-05-04
Caun, Peter M.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Diverse types
160107, 160236, 49 64, E06B 332
Patent
active
043277950
ABSTRACT:
A window casement designed to be attached to a window frame outside the window sash operative on the one hand to serve as a storm window and on the other hand to provide supplemental heating during the winter and cooling during the summer.
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patent: 3089540 (1963-05-01), Schwartz
patent: 3292309 (1966-12-01), Horner
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