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Elinvar is a trademark for a kind of nickel-chromium steel used for watch springs because its elasticity is constant over a wide range of temperatures
Answer for the clue "Elinvar is a trademark for a kind of nickel-chromium steel used for watch springs because its elasticity is constant over a wide range of temperatures ", 7 letters:
elinvar
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Elinvar is a nickel - iron alloy notable for having a modulus of elasticity which does not change much with temperature changes. The name is a contraction of the French '' el asticité invar iable'' (elastically invariable). It was invented in the late 1890s ...