6 Utility Patents
#18 in Waseca, MN
#10,663 in Minnesota
#337,561 in US
#698,502 in the World
Forward Citations = 335
Company Filing History:

Transcrypt International/e. F. Johnson Company
Transcrypt Internationall E. F. Johnson Company
4. 1 out of 1
Transcrypt International/e.f. Johnson
Get your Inventor Badge Today