Sentence examples similar to touchstone of validity from inspiring English sources

§ 458.28 Presumption of validity.

"There is no question of validity.

Are Patents Losing Presumption of Validity?

Consider the importance of validity.

A touchstone of your intelligence," she said.

A touchstone of modernity itself".

So does Amway, that touchstone of American living-room marketing.

The trilling adverbs are a touchstone of Stewart's style.

Coherence was the touchstone of this performance.

Fay is the touchstone of this perspective.

It remains, even today, a touchstone of philosophical memory.