Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1989-02-24
1992-11-03
Burke, Wallace R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D23323
Patent
active
D03307603
REFERENCES:
patent: D221853 (1971-09-01), Kimura
patent: D302853 (1989-08-01), Takahashi et al.
patent: D317500 (1991-06-01), Ueda
patent: 2977918 (1961-04-01), Kritzer
patent: 4709753 (1987-12-01), Reifel
patent: 4723600 (1988-02-01), Yokoyama et al.
patent: 4832117 (1989-05-01), Kato et al.
Huzii Masao
Tezuka Tomohumi
Yoshida Takayuki
Burke Wallace R.
Lichtenstein Lisa
Mitsubishi Denki & Kabushiki Kaisha
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