Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-09-07
1980-01-29
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02540878
REFERENCES:
patent: D197168 (1963-12-01), Cornwell
patent: D197266 (1963-12-01), Talgo
Hardware Age, Oct. 18, 1962, p. 70, lower left item.
Hardware Age, Dec. 24, 1964, p. 94.
Hozelock Limited
Largen James R.
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