Screw shaft element
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The broken lines in the drawings illustrate portions of the screw shaft element and form no part of the claimed design.
Claims
The ornamental design for a screw shaft element, as shown and described.
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Type: Grant
Filed: Nov 1, 2018
Date of Patent: Sep 7, 2021
Assignee: Buss AG (Pratteln)
Inventors: Wolfgang Walter (Aalen), Martin Schötzau (Augst)
Primary Examiner: Sandra Snapp
Assistant Examiner: Ieisha N Price
Application Number: 29/668,733