The story
1919, Max Forst founded a metalworking business in Solingen which manufactured hot-formed metal parts and tools.
1931, the company was renamed Max Forst Werkzeugfabrik (tool manufacturers).
1938, the company patented the world's first click-type torque wrench.
1939, the first torque screwdriver was patented.
1949, the company patented a ring-ratchet system with interchangeable tool inserts.
1953, a design patent was registered for the multifunctional "3=1" combined open-jaw and joint-socket spanner.
1957, Max Forst Werkzeugfabrik was renamed Saltus-Werk Max Forst KG.
1987, The entirely electronic torque wrench, the DAZ-E, was developed which was able to display, save, analyse and document measurements for the first time.
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1992, the EKDS, an electronic torque wrench particularly suited to fast production tasks, is patented internationally.
1995, Saltus filed an international patent application for the first electronic torque wrench with angle measurement not requiring a reference arm.
1997, Saltus-Werk Max Forst GmbH becomes a wholly owned subsidiary of Saltus Technology AG.
2004, the first mechatronic torque wrench (mechanical cut-out with wireless data transmission) is patented.}
2013, Saltus has been acquired by the Swedish Atlas Copco Group and has been integrated in the Group as product company focussing on torque wrenches and accessories.
The production facility, as of 2018, is in Tierp, Sweden.
From Wikipedia’s article on Saltus-Werk Max Forst GmbH, shared under CC BY-SA 4.0.4