USD270178SExpiredUtility

Irrigation sprinkler

Assignee: BERKAN HECK COMPANYPriority: Dec 11, 1980Filed: Dec 11, 1980Granted: Aug 16, 1983
Est. expiryDec 11, 2000(expired)· nominal 20-yr term from priority
Inventors:Michael Heck
57
PatentIndex Score
8
Cited by
11
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an irrigation sprinkler, as shown.

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