James F. Machen

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Toledo, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
High-speed direct-drive extruder
- Patent number 4,249,877
- Issue date Feb 10, 1981
- James F. Machen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Flat Binder Clip
- Publication number 20190308438
- Publication date Oct 10, 2019
- James F. Machen
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER