Dan, I guess that a lens with a coverage of more than 60° would conventionally be termed Wide angle, so with a 35mm camera that's a 35mm focal length lens (63° diagonal), manufacturers termed a 40mm as wide standard lens, a 28mm lens has 75° diagonal Field of View.
Translating to LF isn't quite as simple as usually we want an image circle that allows movements, so a typical standard is usually assumed to be a 150mm lens on 5x4, but on 5x7 it's a wider angle.
Taking simple designs as a base and assuming that a 150mm Tessar is equivalent to a 50mm standard lens on a 35mm camera then:
90mm Angulon 81° equivalent to a 28mm on a 35mm camera
150mm Tessar/Xenar 62° is equivalent to a 50mm on a 35mm camera
On that basis a lens with coverage of around 70° is equivalent to a 35mm wide angle. So as a Germinar W has approx 10° more coverage than a Tessar it's a moderate wide angle lens. Arne Croell doesn't list the Docter 150mm f9 Germinar W, Kerry Thalman says it's a 6 element Plasmat with 70° coverage and Multi coated so it's a different lens to the Apo Germinar W.
We do agree about process lenses
Ian