Grille for a floor register

Details Grille for a floor register Grille for a floor register

1990-08-13

1992-07-28

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D25152

Patent

active

D03283445

REFERENCES:
patent: D354 (1851-03-01), Chilson
patent: D3618 (1869-08-01), Phinney
patent: 147080 (1874-02-01), Tuttle
patent: D230806 (1974-03-01), Penson
patent: 4016699 (1977-04-01), Hurvitz
Woodstock Soapstone Co, Inc., Adv. Brochure, p. 2, register 1, left middle side of page.
Heating, Piping, & Air Conditioning, Dec. 1959, p. 142, middle left side of page, Floor Register Grille No. 60-A, middle left side of page.

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