Otto Gretz – Adressbuch Aachen 1929
| Given name | Otto |
|---|---|
| Family name | Gretz |
| Occupation | Dipl. Ing. |
| Address | Zollernstr. 55 |
| Place | Aachen |
| GOV identifier | AACHENJO30BS |
| Book | Adressbuch Aachen 1929 |
| page | 113 |
| Year | 1929 |
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Der Eintrag ist in der Mitte rechts.