Where, on and after the merger date (a) either of the trustee companies would, but for the merger, be entitled to obtain probate of the will of a deceased person or letters of administration of the estate of a deceased person, the merging company has the same right to a grant of probate of the will or administration of the estate as that trustee company would have had; or(b) either of the trustee companies is named in any instrument as the holder of any office relating to a trust estate, the reference to the trustee company is taken to be a reference to the merging company; or(c) either of the trustee companies is named as agent or attorney in any instrument of appointment, the reference to the trustee company is taken to be a reference to the merging company.