Declension of the word "Altschlüssel"

Singular and plural for Altschlüssel, m, strong declension     translation to English alto clef

Singular
Plural
Singular
Nominativ (Wer? Was?)
der Altschlüssel
die Altschlüssel
Genitiv (Wessen?)
des Altschlüssels
der Altschlüssel
Dativ (Wem?)
dem Altschlüssel
den Altschlüsseln
Akkusativ (Wen? Was?)
den Altschlüssel
die Altschlüssel
Plural
die Altschlüssel
der Altschlüssel
den Altschlüsseln
die Altschlüssel
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