Fred R. Langner

📍 Scottsdale, AZ: #1,079 of 3,386 inventorsTop 35%

🗺 Arizona: #10,057 of 32,909 inventorsTop 35%

Overall (All Time): #1,685,652 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4288070	Chute return mechanism for a photocopier collator	—	1981-09-08
4265445	Photocopier collator	—	1981-05-05
4193683	Method and apparatus for filtering developing liquid in a photocopier	—	1980-03-18