Attachment ring
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Description
The broken lines are for illustrative purposes only and form no part of the claim.
Claims
The ornamental design for “attachment ring”, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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- http://www.globalspec.com/FeaturedProducts/Detail/RudChain/ABA—weldon—Lifting—Points/165129/0.
Patent History
Patent number: D686035
Type: Grant
Filed: Jan 11, 2011
Date of Patent: Jul 16, 2013
Assignee: RUD Ketten Rieger & Dietz GmbH u. Co. KG (Aalen)
Inventor: Michael Betzler (Abtsgmünd)
Primary Examiner: Cynthia Underwood
Application Number: 29/372,783
Type: Grant
Filed: Jan 11, 2011
Date of Patent: Jul 16, 2013
Assignee: RUD Ketten Rieger & Dietz GmbH u. Co. KG (Aalen)
Inventor: Michael Betzler (Abtsgmünd)
Primary Examiner: Cynthia Underwood
Application Number: 29/372,783
Classifications
Current U.S. Class:
D7/367;
D7/356