Richard A. Toupin

Follow

Person

Briarcliff Manor, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for forming droplets from a magnetic liquid st...
- Patent number 4,027,308
- Issue date May 31, 1977
- International Business Machines Corporation
- George J. Fan
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method and apparatus for recording information on a recording surface
- Patent number 3,992,712
- Issue date Nov 16, 1976
- IBM Corporation
- Frederick H. Dill
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS