Artifact · 15 mentions · ACTIVE Sensor System
Geiger counters
Aliases: geiger counters
Mention timeline 7 mentions across 13 docs · 8 undated
Peak 1949 · 4mentions
◆ Declassified · Associations
12 entities
Known associates
Co-occurring across the files — click a node to open its dossier
Cross-reference
Search Geiger counters across public archives
Documents · 13 docs Open in search →
29 NOV 1949 28937026 USAF · 2 mentions · 2 pages 1949 342_HS1-416511228_319.1 Flying Discs 1949 DoD · 2 mentions · 2 pages 2001 255_413270_UFO's_and_Defense_What_Should_we_Prepare_For NASA · 1 mention · 1 page — 28932484 USAF · 1 mention · 1 page — 28935385 USAF · 1 mention · 1 page — 28938520 USAF · 1 mention · 1 page — 28938713 USAF · 1 mention · 1 page — 28960476 USAF · 1 mention · 1 page 01 NOV 1957 28973611 USAF · 1 mention · 1 page 01 NOV 1957 28973796 USAF · 1 mention · 1 page — 302547792 USAF · 1 mention · 1 page — 302549247 USAF · 1 mention · 1 page — 65_HS1-834228961_62-HQ-83894_SUB_A FBI · 1 mention · 1 page