CN103322875A - Spirit level for power transmission line n-shaped rod construction - Google Patents
Spirit level for power transmission line n-shaped rod construction Download PDFInfo
- Publication number
- CN103322875A CN103322875A CN2013102041302A CN201310204130A CN103322875A CN 103322875 A CN103322875 A CN 103322875A CN 2013102041302 A CN2013102041302 A CN 2013102041302A CN 201310204130 A CN201310204130 A CN 201310204130A CN 103322875 A CN103322875 A CN 103322875A
- Authority
- CN
- China
- Prior art keywords
- chi
- ruler
- span
- transmission line
- dip stick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a spirit level for power transmission line n-shaped rod construction. The spirit level for power transmission line n-shaped rod construction comprises a span measuring ruler used for measuring the horizontal distance between two rod pits of an n-shaped rod and two depth measuring rulers arranged on the end portions of the span measuring ruler respectively. The span measuring ruler comprises a ruler sleeve and a telescopic ruler core sleeved inside the ruler sleeve. The outer surface of the ruler core is provided with a scale. A level gauge is arranged on the outer surface of the ruler sleeve. The depth measuring ruler comprises a lower ruler and a telescopic upper ruler sleeved inside the lower ruler. The outer surface of the upper ruler is provided with a scale. The spirit level for power transmission line n-shaped rod construction is convenient to use and capable of directly measuring the horizontal distance between the two rod pits and the perpendicular distance between the bottom faces of the two rod pits, offering instructive parameters for n-shaped rod construction, omitting a large number of calculation processes and improving the construction efficiency to a large extent. In addition, the spirit level for power transmission line n-shaped rod construction further has the advantages of being small in error, easy to transport and store and the like.
Description
Technical field
The present invention relates to a kind of construction tool of electric power facility, be specifically related to a kind of surveyor's staff that is used for adjusting two bars positions, hole and the degree of depth when burying H-frame pole underground.
Background technology
H-frame pole is a kind of common bar type in the transmission line of electricity, generally comprises two upright tower bars, and the top of two tower bars is equipped with fork beam or the cross-arm of level.H-frame pole is owing to having higher Rigidity and strength, and is multiplex in the larger occasion of bearing load.H-frame pole is when construction, according to job specifications, two upright tower bars must be installed on the same level basal plane, and the horizontal range between two buried degree of depth of tower bar and two the tower bars conforms with designing requirement with the stressing conditions that guarantees two bars all within the range of size of design.Therefore, before construction, must dig two bar holes that are used for burying underground the tower bar, and the necessary bottom surface in two bars holes that guarantees is on same level.Therefore when practice of construction, calculate while must dig with transit or level measurement, should guarantee the degree of depth in two bars hole in the scope that design allows, guarantee that again the bottom surface in two bars hole is on the same level.There is following shortcoming in this form of construction work: when 1) measuring, two bar holes all need the workmen to go to find measurement point or reading accurately under the hole at every turn, and labor capacity is large, and hole end light is dark, and reading error is also large; 2) ground is rugged and rough or when being the slope, the horizontal range between the bar hole cannot must be measured first the pitch angle on ground by directly measuring, and just can obtain by calculating again; 3) need repeated measurement in the work progress, repeatedly excavate or fill out back, repeatedly adjust the bottom surface Uniform-design construction surface coincidence that just can make two bar holes, and all need the professional to carry out complicated calculating after each the measurement, the measuring and calculating amount is large, and operating efficiency is low; 4) because the size that will measure is larger, the instrument of directly measuring is generally relatively heavier, is difficult for carrying and depositing, and has the accumulation of error when using undersized survey instrument indirectly to measure, so error ratio is larger.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of transmission line of electricity H-frame pole construction level chi, the problem that labor capacity is large when constructing to solve classic method, error is large, efficiency is low, carrying is inconvenient.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
The working surveyor's staff of transmission line of electricity H-frame pole comprises span dip stick, two depth measuring rulers that are installed in respectively the end of span dip stick for horizontal range between two bar holes measuring H-frame pole; Described span dip stick comprises the chi cover, is socketed in the telescopic chi core in the chi cover, on the outside surface of described chi core scale is set, and on the outside surface of described chi cover level meter is installed; Described depth measuring ruler comprises lower chi, be socketed in the telescopic upper chi in the lower chi, is provided with scale on the outside surface of described upper chi, and the upper end of one of them upper chi of chi is overlapped with chi and is connected on two, and upper end of chi is connected with the chi core on another; Described upper chi and span dip stick are hinged fixing, and the position that the span dip stick is connected with upper chi arranges respectively the mounting ear that a pair of chi length direction along the span dip stick parallel to each other extends; The bearing pin of hinged upper chi is set between two mounting ears.
Further improvement of the present invention is: the outside surface of described chi cover is provided with pedestal, and level meter is installed on the pedestal by screw.
The improvement of described upper chi is: described upper chi successively is socketed by a plurality of chi sections with scale and makes.
The improvement of described chi core is: described chi core successively is socketed by a plurality of chi sections with scale and makes.
Because the technical progress of having adopted technique scheme, the present invention to obtain is as follows.
The present invention is by arranging telescopic span dip stick, and at the span dip stick level meter is installed, can directly measure two horizontal ranges between the bars hole, even also can measure easily having on the ground that necessarily has certain slope, save computation process, improved efficiency.The present invention is by installing telescopic depth measuring ruler at the two ends of span dip stick, can directly measure the difference of two bar hole degree of depth, thereby for next step excavation provides guidance data, saved the adjustment process of repeatedly excavating or filling out back, can significantly raise labour efficiency.And, be positioned at the top of depth measuring ruler among the present invention with the upper chi of scale, need not hole end reading, guaranteed reading accuracy, improved work quality.Depth measuring ruler of the present invention is hinged on the two ends of span dip stick, and owing to Action of Gravity Field, depth measuring ruler can be in vertical state by nature during work, is convenient to measure, and is convenient to folding packing up behind the end-of-job, deposits conveniently.
Level meter of the present invention is dismountable to be installed on the pedestal of span dip stick, level meter can be pulled down preservation behind the end-of-job, in order to avoid exact instrument damages, impact is measured next time; Span dip stick of the present invention and depth measuring ruler all can be made the form that the multistage chi successively is socketed, and make the present invention have the wider scope of application.
Description of drawings
Fig. 1: the perspective view of a kind of embodiment of the present invention;
Fig. 2: the structural representation of another kind of embodiment of the present invention.
Wherein: 1. span dip stick, 11. chi cores, 12. chi covers, 13. level meters, 14. pedestals, 15. mounting ears, 2. depth measuring ruler, chi on 21., 22. times chis.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done further to describe in detail:
Embodiment one:
The working surveyor's staff of a kind of transmission line of electricity H-frame pole, as shown in Figure 1, comprise span dip stick 1 and two depth measuring rulers 2, span dip stick 1 is used for measuring horizontal range between two bar holes, two depth measuring rulers 2 are installed in respectively the two ends of span dip stick 1, are used for measuring the degree of depth in two bar holes.
Span dip stick 1 comprises chi cover 12 and is socketed in the interior telescopic chi core 11 of chi cover.In the present embodiment, chi core 11 and chi cover 12 all are to make with rectangular steel tube, the cross sectional dimensions of the inwall of chi core is 100mm * 150mm, the sectional dimension of outer wall is 106mm * 156mm, chi core length is 2.1m, the sectional dimension of the inwall of chi cover 12 is 107mm * 157mm, and the sectional dimension of outer wall is 113mm * 163mm, and the length of chi cover is 3.1m.Be provided with scale along its length on the upper surface of chi core.Upper surface at chi cover 12 is provided with a pedestal 14, by screw level meter 13 is installed on the pedestal 14.
The outside surface of the end of the side that chi core and chi cover socket-connect is provided with limited block, and the chi cover is provided with back-up ring with the end of the side that the chi core socket-connects, in order to avoid the chi core is pulled out in the chi cover fully, causes both to separate.
The upper chi 21 of two depth measuring rulers 2 is hinged with the two ends of span dip stick 1 respectively.Be respectively equipped with a pair of mounting ear 15 on the lower surface at span dip stick 1 two ends, mounting ear 15 parallels with the length direction of span dip stick.Every pair of mounting ear is provided with one group of through hole, is provided with the bearing pin of hinged upper chi in the through hole.
Being positioned at the central axis of through hole of mounting ear of chi core one end and the horizontal range of chi core end is 0.1m, the zero graduation line of chi wicking surface scale be arranged on chi core one end mounting ear through hole central axis directly over.Be positioned at that chi overlaps the central axis of through hole of mounting ear of an end and the horizontal range of chi cover end is 0.1m.
The present embodiment is applicable to two tower bars apart at 3m～5m, the construction of the H-frame pole of length of embedment in 2m～3m scope.
During use, at first level meter 13 is installed to chi and overlaps on the pedestal 14 on 12 surfaces, use screw fastening.Then measure two horizontal ranges between the bar hole.When the bubble of level meter 13 was in the level meter middle position, level meter was in horizontality, and the depth measuring ruler at span measured value two ends is because the self gravitation effect is in vertical state.Adjust chi core 11 this moment and insert the length that chi overlaps 12 parts, until two depth measuring rulers 2 lay respectively at the center in two bar holes, at this moment, read the reading of span dip stick, the numerical value of this reading adds that the length of chi cover part is two horizontal ranges between the bar hole.
Then excavate bar hole, when the degree of depth in two bars holes during near projected depth, measure the depth difference in two bars holes with two depth measuring rulers, concrete steps are a) to allow depth measuring ruler vertically hang down, until chi supports to the bottom surface in hole down; B) read respectively the reading of the upper chi scale of two depth measuring rulers; C) size of two readings of comparison if two readings are inconsistent, then illustrates the bottom surface in two bars holes not on same level, and the degree of depth in the bar hole that reading is larger is more shallow; D) excavation is continued in a more shallow bar hole of the degree of depth, the degree of depth of excavation is the difference of two readings, perhaps landfill is carried out in a darker bar hole of the degree of depth, and the degree of depth of landfill is the difference of two readings.The bottom surface that can guarantee like this two bar holes is on the same level.
Carry out at last the installation of base and fixing the getting final product of installation of H-frame pole in the bottom surface in bar hole.
After use finishing, depth measuring ruler and span dip stick are packed up, the upper chi of depth measuring ruler is retracted in the lower chi, and the chi core of span dip stick is retracted in the chi cover, and can pack up depth measuring ruler is folding, so that deposit; Level meter 13 can be pulled down from pedestal 14, in order to avoid exact instrument damages.
Embodiment two:
The working surveyor's staff of a kind of transmission line of electricity H-frame pole as shown in Figure 2, is with the difference of embodiment one: in the present embodiment, chi core 11 and upper chi 21 all are the shrinkage-rules that are socketed to form with the chi section of scale by two, and the length of chi cover 12 changes 2.6m into.
Two sections of chi core 11 all is to make with rectangular steel tube, wherein one section thinner cover is received in thicker one section and is formed scalable architecture, the length of thinner one section chi core is 1.6m, and the cross sectional dimensions of inwall is 93mm * 143mm, and the cross sectional dimensions of outer wall is 99mm * 149mm; Thicker one section chi core length is 2m, and the cross sectional dimensions of inwall is 100mm * 150mm, and the sectional dimension of outer wall is 106mm * 156mm.All be provided with scale along its length on the upper surface of two sections chi cores 11.
Two sections of upper chi 21 all is to be made by rectangular steel tube, a thinner segment length 0.7m wherein, and the sectional dimension of its inwall is 23mm * 43mm, the cross sectional dimensions of outer wall is 29mm * 59mm; A thicker segment length 1m, the sectional dimension of its inwall is 28mm * 58mm, outer wall dimension is 34mm * 64mm; All be provided with the scale that arranges along its length on the outside surface of two sections upper chis 21.
The present embodiment is applicable to two tower bars apart at 2.5m～6m, the construction of the H-frame pole of length of embedment in 2m～3.7m scope.
For the construction of the greater or lesser H-frame pole of tower bar distance, size that can be by change chi core, chi cover or the form that the chi core becomes multilayer, successively socket realized; For the construction of the darker or more shallow H-frame pole of length of embedment, size that can be by changing upper chi, lower chi or the form that upper chi becomes multilayer, successively socket realized.
Claims (4)
1. the working surveyor's staff of transmission line of electricity H-frame pole is characterized in that: comprise for the span dip stick (1) of horizontal range between two bar holes measuring H-frame pole, the depth measuring ruler (2) of two ends that are installed in respectively span dip stick (1); Described span dip stick (1) comprises chi cover (12), is socketed in the telescopic chi core (11) in the chi cover, on the outside surface of described chi core (11) scale is set, and level meter (13) is installed on the outside surface of described chi cover (12); Described depth measuring ruler (2) comprises lower chi (22), is socketed in the telescopic upper chi (21) in the lower chi, be provided with scale on the outside surface of described upper chi (21), the upper end of chi (21) is connected with the chi cover on one of them of chi on two (21), and upper end of chi is connected with the chi core on another; Described upper chi (21) is hinged fixing with span dip stick (1), and the position that span dip stick (1) is connected with upper chi (21) arranges respectively the mounting ear (15) that a pair of chi length direction along span dip stick (1) parallel to each other extends; The bearing pin of hinged upper chi is set between two mounting ears.
2. the working surveyor's staff of transmission line of electricity H-frame pole according to claim 1, it is characterized in that: the outside surface of described chi cover (12) is provided with pedestal (14), and level meter (13) is installed on the pedestal (14) by screw.
3. the working surveyor's staff of transmission line of electricity H-frame pole according to claim 1 and 2, it is characterized in that: described upper chi (21) successively is socketed by a plurality of chi sections with scale and makes.
4. the working surveyor's staff of transmission line of electricity H-frame pole according to claim 1 and 2, it is characterized in that: described chi core (11) successively is socketed by a plurality of chi sections with scale and makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310204130.2A CN103322875B (en) | 2013-05-28 | 2013-05-28 | The working surveyor's staff of transmission line of electricity H-frame pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310204130.2A CN103322875B (en) | 2013-05-28 | 2013-05-28 | The working surveyor's staff of transmission line of electricity H-frame pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103322875A true CN103322875A (en) | 2013-09-25 |
| CN103322875B CN103322875B (en) | 2016-04-20 |
Family
ID=49191783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310204130.2A Active CN103322875B (en) | 2013-05-28 | 2013-05-28 | The working surveyor's staff of transmission line of electricity H-frame pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103322875B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604346A (en) * | 2013-11-19 | 2014-02-26 | 中国农业大学 | Seedling transplanting hole parameter determination instrument |
| CN103940329A (en) * | 2014-05-16 | 2014-07-23 | 江苏新业重工股份有限公司 | Novel vertical mill machine grinding roller shell measuring tool |
| CN104359460A (en) * | 2014-11-21 | 2015-02-18 | 柳州科路测量仪器有限责任公司 | Vehicle body clinometer |
| CN105486199A (en) * | 2016-01-27 | 2016-04-13 | 中信戴卡股份有限公司 | Apparatus of measuring a distance between two transverse planes |
| CN106643369A (en) * | 2016-11-03 | 2017-05-10 | 厦门市特种设备检验检测院 | Buried pipeline excavation verification buried depth measuring method and measuring ruler |
| CN107227749A (en) * | 2017-06-05 | 2017-10-03 | 浙江省送变电工程公司 | A kind of oblique template slope control instrument |
| CN107307932A (en) * | 2017-08-17 | 2017-11-03 | 温州市人民医院 | A kind of tailstock frame of protrasion of the lumbar intervertebral disci traction |
| CN107576272A (en) * | 2017-10-20 | 2018-01-12 | 河南省计量科学研究院 | Calibrating dolly for vehicle gabarit detector |
| CN107576273A (en) * | 2017-10-20 | 2018-01-12 | 河南省计量科学研究院 | Calibrating installation for vehicle gabarit detector |
| CN107860296A (en) * | 2017-10-25 | 2018-03-30 | 合肥常青机械股份有限公司 | A kind of heavy truck rivet line longeron is apart from cubing |
| CN108489455A (en) * | 2018-03-25 | 2018-09-04 | 姚燕明 | The aided measurement device and measurement method of sewage open caisson internal structure |
| CN108627067A (en) * | 2017-03-24 | 2018-10-09 | 宝山钢铁股份有限公司 | The measuring device of side press module aperture in a kind of side compression machine |
| CN110375617A (en) * | 2019-07-17 | 2019-10-25 | 川易机电设备启东有限公司 | Arch ruler |
| CN110904989A (en) * | 2019-12-09 | 2020-03-24 | 国网新疆电力有限公司建设分公司 | Iron tower foundation section ruler |
| CN111879282A (en) * | 2020-06-22 | 2020-11-03 | 济南市交通工程质量监督站 | Measuring instrument convenient for measuring point difference and gradient and using method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417116Y (en) * | 2009-04-07 | 2010-03-03 | 徐全增 | X-ray radiography precision measuring scale |
| CN201931860U (en) * | 2011-03-11 | 2011-08-17 | 应慧倩 | Multifunctional folding teaching ruler |
| CN202255379U (en) * | 2011-09-08 | 2012-05-30 | 中国三冶集团有限公司第一建筑工程公司 | Telescopic horizontality and verticality detecting device |
| CN102997814A (en) * | 2012-12-11 | 2013-03-27 | 衡水供电公司 | Rod pit measuring instrument |
-
2013
- 2013-05-28 CN CN201310204130.2A patent/CN103322875B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417116Y (en) * | 2009-04-07 | 2010-03-03 | 徐全增 | X-ray radiography precision measuring scale |
| CN201931860U (en) * | 2011-03-11 | 2011-08-17 | 应慧倩 | Multifunctional folding teaching ruler |
| CN202255379U (en) * | 2011-09-08 | 2012-05-30 | 中国三冶集团有限公司第一建筑工程公司 | Telescopic horizontality and verticality detecting device |
| CN102997814A (en) * | 2012-12-11 | 2013-03-27 | 衡水供电公司 | Rod pit measuring instrument |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604346B (en) * | 2013-11-19 | 2016-08-17 | 中国农业大学 | Culturing and transplanting seedlings cave parameter determinator |
| CN103604346A (en) * | 2013-11-19 | 2014-02-26 | 中国农业大学 | Seedling transplanting hole parameter determination instrument |
| CN103940329A (en) * | 2014-05-16 | 2014-07-23 | 江苏新业重工股份有限公司 | Novel vertical mill machine grinding roller shell measuring tool |
| CN103940329B (en) * | 2014-05-16 | 2016-06-29 | 江苏新业重工股份有限公司 | Roller sleeve of grinding roll of vertical grinding machine survey tool |
| CN104359460A (en) * | 2014-11-21 | 2015-02-18 | 柳州科路测量仪器有限责任公司 | Vehicle body clinometer |
| CN105486199A (en) * | 2016-01-27 | 2016-04-13 | 中信戴卡股份有限公司 | Apparatus of measuring a distance between two transverse planes |
| CN106643369A (en) * | 2016-11-03 | 2017-05-10 | 厦门市特种设备检验检测院 | Buried pipeline excavation verification buried depth measuring method and measuring ruler |
| CN106643369B (en) * | 2016-11-03 | 2019-03-15 | 厦门市特种设备检验检测院 | Buried pipeline, which excavates, examines buried depth measurement method and measuring scale |
| CN108627067A (en) * | 2017-03-24 | 2018-10-09 | 宝山钢铁股份有限公司 | The measuring device of side press module aperture in a kind of side compression machine |
| CN107227749A (en) * | 2017-06-05 | 2017-10-03 | 浙江省送变电工程公司 | A kind of oblique template slope control instrument |
| CN107307932A (en) * | 2017-08-17 | 2017-11-03 | 温州市人民医院 | A kind of tailstock frame of protrasion of the lumbar intervertebral disci traction |
| CN107576273A (en) * | 2017-10-20 | 2018-01-12 | 河南省计量科学研究院 | Calibrating installation for vehicle gabarit detector |
| CN107576272A (en) * | 2017-10-20 | 2018-01-12 | 河南省计量科学研究院 | Calibrating dolly for vehicle gabarit detector |
| CN107576273B (en) * | 2017-10-20 | 2024-04-05 | 河南省计量测试科学研究院 | Calibrating device for vehicle contour detector |
| CN107576272B (en) * | 2017-10-20 | 2024-04-05 | 河南省计量测试科学研究院 | Verification trolley for vehicle contour detector |
| CN107860296A (en) * | 2017-10-25 | 2018-03-30 | 合肥常青机械股份有限公司 | A kind of heavy truck rivet line longeron is apart from cubing |
| CN108489455A (en) * | 2018-03-25 | 2018-09-04 | 姚燕明 | The aided measurement device and measurement method of sewage open caisson internal structure |
| CN108489455B (en) * | 2018-03-25 | 2020-05-01 | 姚燕明 | Method for measuring internal structure of sewage open caisson |
| CN110375617A (en) * | 2019-07-17 | 2019-10-25 | 川易机电设备启东有限公司 | Arch ruler |
| CN110904989A (en) * | 2019-12-09 | 2020-03-24 | 国网新疆电力有限公司建设分公司 | Iron tower foundation section ruler |
| CN111879282A (en) * | 2020-06-22 | 2020-11-03 | 济南市交通工程质量监督站 | Measuring instrument convenient for measuring point difference and gradient and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103322875B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103322875B (en) | The working surveyor's staff of transmission line of electricity H-frame pole | |
| CN203349818U (en) | Level ruler for construction of portal rod of power transmission line | |
| CN102095401B (en) | Long-distance shield tunnel breakthrough survey method | |
| CN106123849A (en) | The monitoring method of Vault settlement and monitoring element thereof in a kind of bored tunnel | |
| CN103196417A (en) | Method for directionally measuring vertical well by double-connection triangle | |
| CN105973141A (en) | Device and method of measuring shield tunnel segment dislocation | |
| CN103487022A (en) | Motorway soft soil roadbed settlement observation cable device | |
| CN103727920A (en) | Method of measuring level elevation difference based on geoid model | |
| CN103256918A (en) | Special ruler for measuring vault settlement of tunnel | |
| CN109458999B (en) | Drilling construction foundation parameter correction measuring device and measuring method thereof | |
| CN207230099U (en) | A kind of mapping stent suitable for field mapping | |
| CN203443584U (en) | Readable integrated settlement gauge | |
| CN211060883U (en) | Area measuring instrument for land planning design | |
| CN103344214B (en) | 1.6-degree parabolic extralarge pier measuring and pier body linear control method | |
| CN203502015U (en) | Special measuring scale for horizontal displacement by collimation line method | |
| CN203375966U (en) | Dotting device for vertical shaft connection survey | |
| CN203148424U (en) | Total station with function of automatic measuring of height of total station | |
| CN204040007U (en) | Base-line method measures the aid of top, foundation ditch slope horizontal distortion | |
| CN207798102U (en) | A kind of geography information plotting staff easy to operation | |
| CN103523669B (en) | The method of crane and measuring and calculating suspension arm of crane height | |
| CN203148425U (en) | Leveling device for track inspection | |
| CN108151707A (en) | A kind of multi-functional gradient measurer | |
| CN213629744U (en) | Multifunctional measurement supporting device suitable for engineering survey | |
| CN208432265U (en) | A kind of construction graphometric square | |
| CN210831214U (en) | Tripod for mapping engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |