125000000998 L-alanino group Chemical group 0.000 description 2.238000006011 modification reaction Methods 0.000 description 6.239000003247 radioactive fallout Substances 0.000 title description 42.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Jr Ewel J Morris filed Critical Jr Ewel J Morris Priority to US114890A priority Critical patent/US3161990A/en Application granted granted Critical Publication of US3161990A publication Critical patent/US3161990A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US114890A Inventor Jr Ewel J Morris Original Assignee Jr Ewel J Morris Priority date (The priority date is an assumption and is not a legal conclusion.

Google Patents US3161990A - Fallout shelterĭownload PDF Info Publication number US3161990A US3161990A US114890A US11489061A US3161990A US 3161990 A US3161990 A US 3161990A US 114890 A US114890 A US 114890A US 11489061 A US11489061 A US 11489061A US 3161990 A US3161990 A US 3161990A Authority US United States Prior art keywords cover pit shelter air fallout Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Portable nuclear fallout shelter