Disambiguation evidence for M-21 via surface form

"M-21"

Triples (3)

Triples where some other subject referred to this entity as "M-21".

Lockheed A-12 program → aircraftVariantDeveloped →
"M-21"
↳ resolves to M-21
ⓘ
Lockheed A-12 → variant →
"M-21"
↳ resolves to M-21
ⓘ
A-12 reconnaissance aircraft → hasVariant →
"M-21"
↳ resolves to M-21
ⓘ