Marvin M. Heisner

FA Fansteel: 3 patents #4 of 37Top 15%

📍 Howell, MI: #198 of 595 inventorsTop 35%

🗺 Michigan: #27,158 of 86,293 inventorsTop 35%

Overall (All Time): #1,685,821 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4278372	Adjustable boring bar mechanism	—	1981-07-14
4228705	Tool holding device	—	1980-10-21
4229128	Reinsertable adjustable boring bar	—	1980-10-21