Frederick R. Sytsma

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Grand Rapids, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Sealed bearing assembly
- Patent number 4,863,293
- Issue date Sep 5, 1989
- Frost Inc.
- Frederick R. Sytsma
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Chain bracket with strengthened chain supports
- Patent number 4,266,657
- Issue date May 12, 1981
- C. L. Frost & Son, Inc.
- Charles C. Frost
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Chain bracket with strengthened chain supports
- Patent number 4,210,238
- Issue date Jul 1, 1980
- C. L. Frost & Son, Inc.
- Charles C. Frost
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sanitary anti-friction trolley wheel
- Patent number 3,971,601
- Issue date Jul 27, 1976
- C. L. Frost & Son, Inc.
- Frederick R. Sytsma
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL