Standard Highway Signs 2004 Edition: Warning Signs
The pattern
This still is filed under Mark as compressed claim.
Define
The mark itself is the sentence: a monogram, a seal, a device that already means the claim.
Mechanism
Compression. Years of use, or a very sharp first use, load the device so it can appear without copy.
Verdict
The mark is already loaded, or we will spend to load it
Why it works
It uses a stark, high-contrast symbol to communicate a physical hazard, with strict dimensional rules to ensure it is recognizable at high speeds.
Steal this when
When creating technical specifications for high-visibility warning graphics.