Air diffuser guard

Details Air diffuser guard Air diffuser guard

1993-06-21

1997-12-02

Lichtenstein, Lisa

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23387, D23388, D23389, 2303

Patent

active

D03871550

REFERENCES:
patent: D235066 (1975-05-01), Rasmussen
patent: D235067 (1975-05-01), Rasmussen
patent: D322634 (1991-12-01), Callas
patent: 3386367 (1968-06-01), Pellegrino
patent: 3502016 (1970-03-01), Steele
patent: 3665969 (1972-05-01), Clifford
patent: 4481871 (1984-11-01), Efstratis
patent: 4501195 (1985-02-01), Held
patent: 4655120 (1987-04-01), Lemmo
patent: 5188332 (1993-02-01), Callas

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