- Alphand
- Alphand
- Alteschmidt, Wilhelm
- Althoff
- Altmann, Isaac Hermann Albert
- Alvensleben, R.
- Alverdes, Victor
- Alverdes, Willi
- Alverdes, Willi
- Alverdes, Willy
- Ambrosius, Firma R.
- Ambrosius, Reinhold
- Ambrosius, Reinhold
- Ambrozy-Migazzi
- Amici, Giovanni Battista
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