Set of trigonometry calculator keys
Description
The broken lines in the drawings depict the bounds of the claim, which extends to the boundary but does not include the boundary.
Claims
The ornamental design for set of trigonometry calculator keys, as shown and described.
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Patent History
Patent number: D766910
Type: Grant
Filed: Nov 11, 2014
Date of Patent: Sep 20, 2016
Inventor: Albert E. Packulak (Saskatoon)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Marie Fast Horse
Application Number: 29/508,793
Type: Grant
Filed: Nov 11, 2014
Date of Patent: Sep 20, 2016
Inventor: Albert E. Packulak (Saskatoon)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Marie Fast Horse
Application Number: 29/508,793
Classifications