USD469368SExpiredUtility
Protractor with an auxiliary ruler
Priority: Mar 18, 2002Filed: Mar 18, 2002Granted: Jan 28, 2003
Est. expiryMar 18, 2022(expired)· nominal 20-yr term from priority
Inventors:Fu-Chi Lin
47
PatentIndex Score
6
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a protractor with an auxiliary ruler, as shown and described.
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