high-frequency electric heating

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Patents Grantslast 30 patents

Information Patent Grant
Article holding bag of non-woven fabric and a method for making the...
- Patent number 5,667,307
- Issue date Sep 16, 1997
- Hua Tsung Chiu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
3431380
- Patent number 3,431,380
- Issue date Mar 4, 1969
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL