USD317417SExpiredUtility

Combined photoelectric and contact digital tachometer

43
Assignee: LIN DONG-CHANGPriority: Aug 18, 1988Filed: Aug 18, 1988Granted: Jun 11, 1991
Est. expiryAug 18, 2008(expired)· nominal 20-yr term from priority
Inventors:Dong Lin
43
PatentIndex Score
4
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a combined photoelectric and contact digital tachometer, as shown and described.

Join the waitlist — get patent alerts

Track USD317417S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.