| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a3b819c99eb24efae99bc9962607ebc9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ecc58e5fd0006c472fea1ec2f879638c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b4b19abfcd582f8a8891922771a036c |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21D9-00 |
| filingDate |
1998-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3de5f6d795467fabb4a3f901e0876993
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1b22f051890de56a5be5fefc5ee64e8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3102a9134c60690bcc7e210c9c85c10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89465b48ab287954614b3d470ad4afb3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6eff86c2776d13ecf2dd00a1aa385bff |
| publicationDate |
2000-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-410252-B |
| titleOfInvention |
Hole-wall maintaining boring method |
| abstract |
To provide a hole-wall maintaining boring method wherein a boring is performed employing no bubbles nevertheless without raising dust. Employed is a hole-wall maintaining method to bore a hole in the earth with a drill, which is characterized by that a solution of at least one selected from the group consisting of natural high molecular compounds, semi-synthesized high moleculrar compounds excluding carboxymethyl celluose and synthesized high molecular compounds is sprayed as boring to form a mist with pressurized air to prevent stones, earth and sand in the hole-wall from collapsing and falling. |
| priorityDate |
1997-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |