Some info about "ang" marked on my ratchet, from german bladesmith article.
"DRP, D.R.P. and D.R.Pa.
are all German—Deutsches Reichs-Patente—representing the highest category of
protection a design could be granted. Care should be taken to distinguish ‘D.R.Pa.’
and ‘D.R.P.A.’, as the latter, more commonly ‘D.R.P. Ang.’ or ‘D.R.P. Angem.’, signifies
Deutsches Reichs-Patent Angemeldet (i.e., that the patent had been sought but not
yet granted. ‘D.R.P. Ang.’ marks were customarily used only for a short time, before
being replaced with ‘D.R.P.’, and can provide a useful dating aid."