Beijing Stone Group Corporation

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Emergency compressed-air brake for automobiles
- Patent number 5,024,490
- Issue date Jun 18, 1991
- Beijing Stone Group Co.
- Tingyi Wang
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
74556248
- Serial number 74556248
- Registration number 1943689
- Filing date Aug 2, 1994
- Beijing Stone Group Corporation
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74135903 - STONE
- Serial number 74135903
- Registration number 2194467
- Filing date Feb 4, 1991
- BEIJING STONE GROUP CORPORATION
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74088978
- Serial number 74088978
- Filing date Aug 17, 1990
- Beijing Stone Group Corporation
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments