http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-209096349-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_627cc04b3efbc212f3ee85260992ff39 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B43L9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B43L13-00 |
| filingDate | 2018-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5f158f15b7186c569e8f926006e4257 |
| publicationDate | 2019-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-209096349-U |
| titleOfInvention | A multi-purpose ruler for mathematics teaching |
| abstract | The utility model discloses a multi-purpose ruler for mathematics teaching, comprising a ruler body, a spring rod and a support block. A reading block is fixed on the ruler body, a fixing sleeve is fixed at the left end of the ruler body, and a right end of the ruler body is fixed There is a telescopic block, a support block is fixed on the movable block, the chute is opened on the inner wall of the outer cylinder, a rotary bearing is installed on the ruler body, and a fixed rod is arranged inside the rotary bearing, and the fixed rod is installed on the fixed rod. Inside the groove, the fixing groove is opened on the working block, and the working block is installed on the rotating bearing. The multi-purpose ruler for mathematics teaching adopts a new type of structure design, and a structure with convenient reading function is designed, which solves the problem of inconvenient reading of traditional devices. The chalk is fixed by the fixed block, and the extension of the support block is controlled by the movable block. With the folding function of the device, the device can be used as a compass, which realizes the multi-function of the device and solves the problem of single operation of the traditional device. |
| priorityDate | 2018-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.