The baggage, samples, goods, wares, appliances, and catalogues of commercial travelers or their employers, and used by them for the exclusive purpose of transacting their business and carried with them solely for that purpose and which in no instance shall be sold or offered for sale or for free distribution, when securely packed and fastened in trunks and sample cases, are declared to be baggage within the meaning of this chapter, and such transportation companies are required to transport same with passengers from point to point within this state as provided in this division.