Fire alarm testing device
Description
Claims
The ornamental design for a fire alarm testing device, as shown and described.
Referenced Cited
U.S. Patent Documents
5523744 | June 4, 1996 | Wieser |
Patent History
Patent number: D860837
Type: Grant
Filed: Jun 14, 2018
Date of Patent: Sep 24, 2019
Inventor: Charles D. Workman (Charleston, SC)
Primary Examiner: Antoine Duval Davis
Application Number: 29/651,365
Type: Grant
Filed: Jun 14, 2018
Date of Patent: Sep 24, 2019
Inventor: Charles D. Workman (Charleston, SC)
Primary Examiner: Antoine Duval Davis
Application Number: 29/651,365
Classifications