Vibration pickup device and system

• US 2,534,276 A
• Filed: 01/10/1944
• Issued: 12/19/1950
• Est. Priority Date: 01/10/1944
• Status: Expired due to Term

• Current Assignee: Joseph H. Lancor Jr
• Original Assignee: Joseph H. Lancor Jr
• Inventors: Lancor, Joseph H. Jr.
• Application Number:
  US02/517,657
• Time in Patent Office: 2,535 Days
• US Class Current: 73/114.07
• CPC Class Codes: G01L 23/22 for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
• CPC Class Codes: G01L 23/223 using magnetic or magnetostrictive means

Claims