USD256947SExpiredUtility
Control shaft for a valve
Est. expiryJun 13, 1998(expired)· nominal 20-yr term from priority
Inventors:Ralph Terrazas
57
PatentIndex Score
9
Cited by
9
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe design for a control shaft for a valve, substantially as shown.
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