Air nozzle

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified

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D23 17

Patent

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D02813491

REFERENCES:
patent: D140837 (1945-04-01), Baur
patent: D153034 (1949-03-01), Roland
patent: D195486 (1963-06-01), Penkaff
patent: D215287 (1969-09-01), Nordeen
patent: D241544 (1976-09-01), Whitbread
patent: D248041 (1978-05-01), Persson
patent: D261547 (1981-10-01), Parke
patent: 2579408 (1951-12-01), Vreeland, Jr.
patent: 2678848 (1954-05-01), Grewe et al.
patent: 3884419 (1975-05-01), Geoffray
patent: 4102500 (1978-07-01), Luff
patent: 4128209 (1978-12-01), Johnson

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