Door
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United States of America Patent
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-
Jan 18, 1994
Grant Date -
N/A
app pub date -
Mar 6, 1992
filing date -
Sep 8, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A door is equipped on its side facing the area to be closed off, with a sealing element disposed around the peripheral edges of the door, a door locking device to retain the door in a closed position, and possibly a thermal layer for insulating the door from passage of heat therethrough.
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