Dorothea C. Erickson

Follow

Person

Chicago, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Whistle-cap device
- Patent number 4,121,375
- Issue date Oct 24, 1978
- Wallace A. Erickson & Company
- Wallace A. Erickson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL