John J. Martin

CP Crane Productions: 2 patents #1 of 1Top 100%

📍 Castor, LA: #1 of 1 inventorsTop 100%

🗺 Louisiana: #33 of 531 inventorsTop 7%

Overall (1997): #35,247 of 185,788Top 20%

Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5676307	Card having magnetic sheet secured to one surface and having a ramp to facilitate mailing	—	1997-10-14
5641116	Card having magnetic sheet secured to one surface with a mailing spacer thereon	—	1997-06-24