USD444478SExpiredUtility
Internal combustion engine
Est. expiryDec 28, 2019(expired)· nominal 20-yr term from priority
Inventors:Hirohide Shimizu
83
PatentIndex Score
31
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an internal combustion engine, as shown and described.
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