Jean Grabowski

HU Hutchinson: 2 patents #2 of 8Top 25%

📍 Langres, FR: #1 of 6 inventorsTop 20%

Overall (1989): #24,428 of 140,708Top 20%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4848801	By-pass connections obtained by molding a coating of a junction material around a rigid tubular insert more particularly and a process for manufacturing same	—	1989-07-18
4824148	Device for sealingly fixing a tube or pipe to an end coupling	—	1989-04-25