Can I use images from commercial model catalogs as blueprints?

Hello there.
I have a PDF file here which is a catalog of 3d models from Dosch. The images are detailed and the angle is perfect to use as blueprint to model my own models based on theirs.
I don’t know however, if it’s “legal” to use their images to make similar models.
Any ideas?
Thank you in advance.

There’s nothing stopping you using them; it depends what your plans are for your finished model.

If in doubt, contact them explaining your intentions and what you plan to do with the finished product.

I want to make similar models. I’m not going to sell them.
I just don’t want to be forced to shoot my 12 gauge at their faces in case they come here :).