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By 1853, the new partnership announced the precision vernier caliper as the first fruit of their joint efforts.

The basic significance of this invention helped them to follow it rapidly in 1855 by the development of a unique precision gear cutting and dividing engine.

That development, in turn, formed the foundation of still more significant expansions in later years -- in gear cutting, in circular graduating, in index drilling, and in many other fields where accuracy was a paramount requirement.