Hello, I'm chiming in here as a new user with some interesting info on Caminada bikes.
I happen to live in Winterthur (Switzerland) and this week, I got a used Caminada bike, beautiful steel frame (Reynolds 531) with modern Ultegra. Rides beautifully, and it's quite light, under 10 kg.
The info I found online was bad, so I decided to ask bike frame makers in Zurich, if they know this brand, and there it is: jackpot.

Today, the bike frame maker "Röbi Stolz" of Stolz frames replied.
[Quote]
Bruno Caminada built frames here in Zurich for a long time. More than 600 frames or bicycles left his workshop on the waterfront in Zurich in the best years. He sold bicycles directly under his name, but also soldered frames for other suppliers. If you sent me a sharper picture, I could do a chronological classification of your bike. On the seat tube there seems to be a sticker from Reynolds with the designation 531. This was the best tube material available at that time.

His grandson took over the company from him, but was nowhere near as successful as his grandfather, and then had to close the business at the end of the 90s. I have acquired some material and machines from the liquidation.
[End quote]

Wow, he has some Caminada machines
I'll try to get info on my bike and see him in the shop with a friend who loves bikes. pieman1988 it seems you are living in the US, right? Would be great if you could join, but I think, that's out of question here.
I'll post more info in the future, as I'm really interested in learning about this story and helping others get info.