USD248236SExpiredUtility
Vacuum draining unit for lubricants from internal combustion engines
Est. expiryApr 7, 1996(expired)· nominal 20-yr term from priority
Inventors:Frank J. Senese
63
PatentIndex Score
8
Cited by
9
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a vacuum draining unit for lubricants from internal combustion engines, substantially as shown.
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