USD251974SExpiredUtility
Engine head reworking machine
Est. expiryFeb 24, 1997(expired)· nominal 20-yr term from priority
Inventors:James F. Flaten
20
PatentIndex Score
0
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an engine head reworking machine, substantially as shown.
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