USD486837SExpiredUtility
Thread winding device for a sewing machine
Est. expiryOct 12, 2021(expired)· nominal 20-yr term from priority
36
PatentIndex Score
2
Cited by
13
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a thread winding device for a sewing machine, as shown and described.
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