Hi Mark,
I found the following preliminary information by tracking the patent application number through the German Museum Archives and the World Intellectual Property Organization. I don't speak German, but perhaps these are good starting points:
If you wouldn't mind an unofficial transcription of the application, it appears that you may find one here, thanks to the Zuse archive:
I hope that this helps you to get started. I love finding patents, so please do keep me posted on how the search goes.
Best,
Con