Static structures (e.g. – buildings) – Including component designed to receive a disparate article... – Artificial illumination means
Patent
1981-03-16
1985-01-15
Murtagh, John E.
Static structures (e.g., buildings)
Including component designed to receive a disparate article...
Artificial illumination means
52204, 52802, 362150, E04B 552, F21V 2102
Patent
active
044931719
ABSTRACT:
A ceiling module includes a ceiling-defining sheet of material and an overlay spaced above and parallel with the ceiling-defining sheet. The overlay is secured to the ceiling-defining sheet along the periphery of the ceiling-defining sheet and also at positions spaced inwardly from the periphery to support the ceiling-defining sheet.
REFERENCES:
patent: 2982196 (1961-05-01), Sherron
patent: 3372270 (1968-03-01), Quin
patent: 3736706 (1973-06-01), Stephenson
patent: 3743826 (1973-07-01), Halfaker
patent: 3831019 (1974-08-01), Halfaker
patent: 4114327 (1978-09-01), Williams
patent: 4175360 (1979-11-01), Mulvey
Emerson Electric Co.
Murtagh John E.
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