1937
First major international patent in accessories for La Nationale SA.
1959
Patent published on the design of a single-piece, metallic gas reservoir, which goes on to be used in a significant number of lighters in Switzerland and elsewhere.
1971
La Nationale SA becomes “LN Industries SA” to reflect its diversification into the field of microtechniques. From then, its exports turn towards Europe, North America, and Asia.
1972
First international patent on an innovative elastic hinge system, marking a technical advance in the eyewear industry.