CPK by CPK MANAGEMENT COMPANY (Track this)
Intl: (042) Computer, scientific & legal US: 100; 101 Filing date: 18-Feb-1992 Serial number: 74246883
CPK by Harvard Bioscience, Inc (Track this)
Intl: (009) Electrical and scientific apparatus US: 026 Filing date: 03-Jun-1966 Serial number: 72247205