I understand the question is asking about whether the workplace uses テプラ or ネームランド cameras, but what exactly does the 「でしたか」 mean in this circumstance?
I looked up Tepra (テプラ) on google images and its a handheld machine makes something like nameplates on the go. Please correct if I am wrong!
Anyway, this usage of でしたか is as straight-forward as it gets: past tense of です + question particle か. Listing consecutive items using か gives a " [this] or [that]" list, like in your example.
More context is definitely needed for this to fully make sense, so I had to infer as to not make a nonsensical statement.
(Did your workplace use) Tepra or Nameland (nameplate machines)?