USD271670SExpiredUtility

Fire and smoke detector

80
Assignee: NITTAN CO LTDPriority: Jun 22, 1981Filed: Jun 22, 1981Granted: Dec 6, 1983
Est. expiryJun 22, 2001(expired)· nominal 20-yr term from priority
Inventors:Nobuei TakaiKatsura Yamamoto
80
PatentIndex Score
19
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a fire and smoke detector, as shown.

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