Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-11-23
1982-10-05
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02664534
REFERENCES:
patent: D118419 (1940-01-01), Rockwood
patent: D152054 (1978-12-01), Bletcher et al.
patent: D153490 (1979-04-01), Beebee
patent: D191428 (1961-09-01), Leighton
patent: D231829 (1974-06-01), Fraiser
patent: D251983 (1979-05-01), Dunkin
patent: D262396 (1981-12-01), Whedon
patent: 2985385 (1961-05-01), Bowers et al.
patent: 3722799 (1973-03-01), Rauh
patent: 4010899 (1977-03-01), Heitzman
patent: 4013230 (1977-03-01), Gondek
patent: 4082225 (1978-04-01), Haynes
patent: 4202501 (1980-05-01), Haynes
Domistic Engineering, May 1960, p. 165, "Shower Head" item.
Hardware Age, Aug. 23, 1962, p. 67, top left item.
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