(1) If the main office of a sole trader or of a legal person or the seat of a commercial company or commercial partnership is located abroad, all applications, submissions and entries concerning a domestic branch office are to be made at the court in the district of which the branch office exists.
(2) The registration of the establishment of a branch office also is to indicate the place and the domestic business address of the branch office; if an addition is appended to the business name of the branch office, the addition as well is to be registered.
(3) In all other regards, the provisions concerning main offices or offices at the seat of the company apply accordingly, unless foreign law necessitates divergence, to applications, submissions, entries, notices by publication and changes of facts to be registered which concern the branch office of a sole trader, of a commercial company or commercial partnership, or of a legal person, to the exception of stock corporations, public partly limited partnerships and limited liability companies.