USD250412SExpiredUtility

Drawing attachment for a microscope

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Assignee: AMERICAN OPTICAL CORPPriority: Mar 2, 1977Filed: Mar 2, 1977Granted: Nov 28, 1978
Est. expiryMar 2, 1997(expired)· nominal 20-yr term from priority
Inventors:John T. Armbruster
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PatentIndex Score
1
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a drawing attachment for a microscope, as shown and described.

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