$Parkervision(PRKR)$ 8-K - Current report Filed: 2018-12-21 AccNo: 0001398344-18-018417 Size: 133 KBItem 1.01: Entry into a Material Definitive AgreementItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a RegistrantItem 3.02: Unregistered Sales of Equity SecuritiesItem 9.01: Financial Statements and Exhibits 网页链接