USD274135SExpiredUtility
Automatic set-back control for gas water heater
Est. expiryMay 3, 2002(expired)· nominal 20-yr term from priority
Inventors:Grove M. Anderson
16
PatentIndex Score
2
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an automatic set-back control for gas water heaters, substantially as shown.
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