Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Liquid immersion type – e.g. – aquarium – swimming pool – etc.
Design Patent
2009-04-21
2010-10-12
Nelson, T. Chase (Department: 2914)
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Liquid immersion type, e.g., aquarium, swimming pool, etc.
CD10S101000
Design Patent
active
D0625396
CLAIM:
I claim the ornamental design for level sensor and heating unit, as shown and described.
REFERENCES:
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patent: 2902581 (1959-09-01), Stiebel
patent: 4527533 (1985-07-01), Laramee
patent: 4617456 (1986-10-01), Richards et al.
patent: D415264 (1999-10-01), Thweatt, Jr.
Dworzecka Ania K
Fredrikson & Byron , P.A.
Nelson T. Chase
Wema-System AS
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