Whether the appeal was admissible despite the missing power of attorney for the signer
No. Because the appellant failed to produce the required proxy within the deadline, the signer’s authority was not proven and the appeal had to be declared inadmissible.
Under Arts. 68(3) and 132(1) CPC, a defective filing must be cured within the court-set time limit; if no proxy is filed, representation is not established and the act is not considered.