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Patents Grantslast 30 patents

Information Patent Grant
Furnace of decreasing oxygen concentration to ultra low amount
- Patent number 5,044,944
- Issue date Sep 3, 1991
- Yugen Kaisha R.I. Electronic Industry
- Toshio Furuya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Roller hearth type heat treating furnace
- Patent number 4,932,864
- Issue date Jun 12, 1990
- Chugai Ro Co., Ltd.
- Yoshinaga Miyabe
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Random access oven
- Patent number 4,834,649
- Issue date May 30, 1989
- National Semiconductor Corporation
- Boris Levit
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Shrink oven
- Patent number 4,538,363
- Issue date Sep 3, 1985
- Dimiter S. Zagoroff
- F26 - DRYING
Information Patent Grant
3179390
- Patent number 3,179,390
- Issue date Apr 20, 1965
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
3154298
- Patent number 3,154,298
- Issue date Oct 27, 1964
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...