partnership firm trade mark application

 in case trade mark application submitted by partnership firm , all partners are signed tm1 form 

in case file trade mark agent tm48 signed by all partners  

or  managing partner alone

An act of one of the partner is deemed to be an act done by other partners. One Managing partner's sign or any other partner's sign is sufficient.

But it is better that the firm gives an POA to the lawfirm or lawyer to act on their behalf for filing applications or notice of oppositions.  It is simple and sufficient.   But for filing all evidences and counter statements the partners need to sign.

Ido agree with mr krishnna