sentences:  He began importing watchmakers' and jewellers' supplies, and about 1884 joined forces with Emil Barthel, who had a similar business, under the name of Bosch, Barthel and Company.The importing of dental and opticians' supplies was added in 1885, and the business became the largest of its kind in Australia.In 1894 Bosch bought Barthel's interest in the business, which continued to progress and expand with branches in Melbourne and Brisbane.