Crenshaw, John
Company:
Westclox
Alternate Name Forms:
John C. Crenshaw
Patents:
Role: Inventor Title: Digital Clock Number: Des. 240023 Issue Date: 1976-05-25
Role: Inventor Title: Clock Number: Des. 247741 Issue Date: 1978-04-18
Role: Inventor Title: Timer Number: Des. 251058 Issue Date: 1979-02-13
