CN107350532A - A kind of mistake divides spiral arc side set ripple blade milling cutter - Google Patents
A kind of mistake divides spiral arc side set ripple blade milling cutter Download PDFInfo
- Publication number
- CN107350532A CN107350532A CN201710738532.9A CN201710738532A CN107350532A CN 107350532 A CN107350532 A CN 107350532A CN 201710738532 A CN201710738532 A CN 201710738532A CN 107350532 A CN107350532 A CN 107350532A
- Authority
- CN
- China
- Prior art keywords
- spiral
- blade
- arc
- zhou ren
- ripple
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1081—Shank-type cutters, i.e. with an integral shaft with permanently fixed cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0485—Helix angles
- B23C2210/0492—Helix angles different
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/40—Flutes, i.e. chip conveying grooves
Abstract
The invention provides a kind of mistake to divide spiral arc side set ripple blade milling cutter, including shank and blade, and blade includes Zhou Ren and shear blade, and Zhou Ren and shear blade dislocation are complementary；A plurality of Zhou Ren is into the angle for not waiting segmentation, and each bar Zhou Ren helicla flute is also into the angle of the spiral such as not；A plurality of shear blade is also into the angle for not waiting segmentation, and the point of a knife mouth of shear blade is provided with and prevents collapsing circular arc R angle；The Zhou Ren is provided with ripple sword circle-arc tooth.Cutting force dislocation complementary method in mechanics, enters line misregistration spiral complementary design by Zhou Ren and shear blade, can be effectively that extruding force caused by cutting is scattered up and down, reduces the recoil strength to cutter, can substantially reduce cutter and produce resonance with workpiece in cutting.This milling cutter can be widely applied to the processing of various types of materials, have obvious Optimality particular for difficult to machine material.Cutter uses the particular design of geometric angle, and processing resection rate is big, and precision is high, service life length, and with the shockproof anti-characteristic quivered.
Description
Technical field
The present invention relates to a kind of mistake to divide spiral arc side set ripple blade milling cutter, belongs to machining tool technical field.
Background technology
With the continuous adjustment of science and technology and the industrial structure, the requirement also more and more higher of today's society machining.With
The appearance of increasing new material, harsh Product Precision and the processing efficiency requirement constantly lifted, are to work as in processing
Two hang-ups in the present machining.How research and concern that cutting-tool's used life also increasingly obtain each side are strengthened.
Cutter used in traditional machining has not caught up with the step of the machining development in this epoch.Particularly
Some difficult to machine materials, such as：The high temperature such as nickel-base alloy, titanium alloy and cohesive material.Also each field extensive utilization arrives now
Stainless steel material, these are all than more typical difficult to machine material.
Not only cutting output is small for traditional machining tool, process velocity is slow, and cutting-tool's used life is short.Main table
Now：In big cutting output, cutter and workpiece can produce resonance, can not thus improve process velocity；Workpiece generates resonance
Afterwards, cutting-tool's used life will become very short.
The content of the invention
The present invention is to solve traditional processing tool sharpening speed is slow, cutting output is small, cutter and product are easily produced and quivered
Tremble the technical problem low with the sound, cutter life.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of mistake divides spiral arc side set ripple sword milling
Knife, it is characterised in that：Including shank and blade, blade includes Zhou Ren and shear blade, and Zhou Ren and shear blade dislocation are complementary；A plurality of Zhou Ren into
The angle of segmentation is not waited, and each bar Zhou Ren helicla flute is also into the angle of the spiral such as not；A plurality of shear blade is also into the angle for not waiting segmentation
Degree, and the point of a knife mouth of shear blade is provided with and prevents collapsing circular arc R angle；The Zhou Ren is provided with ripple sword circle-arc tooth.
Preferably, the Zhou Ren has four；First Zhou Ren is 0 °~3 °, 30 °~33 ° of spiral angle；Article 2 Zhou Ren
For 85 °~87 °, 35 °~38 ° of spiral angle；Article 3 Zhou Ren is 177 °~180 °, and spiral angle is 30 °~33 °；Article 4
Zhou Ren is 265 °~267 °, 35 °~38 ° of spiral angle.
It is highly preferred that the shear blade has four；First shear blade is 0 °~3 °, and Article 2 shear blade is 85 °~87 °, the 3rd
Bar shear blade is 177 °~180 °, and Article 4 shear blade is 265 °~267 °
Preferably, the bottom land of the helicla flute of the Zhou Ren is U-shape structure, and the part for upwardly extending the back of the body of groove is parabolic shape
Curved body structure, the groove back of the body of parabolic structure is collectively forming a compound complete spiral grooves with the bottom land of U-shape structure.
Preferably, according to the mistake of every Zhou Ren spiral angle point difference, the helix of corresponding ripple sword circle-arc tooth is not yet
Together.
It is highly preferred that the wrong parting of ripple sword circle-arc tooth is formed between each bar Zhou Ren.
Preferably, the machined surface of the ripple sword circle-arc tooth is circular arc.
Preferably, the circular arc concave bottom surface of the ripple sword circle-arc tooth is parabola circular arc body.
Preferably, on the Zhou Ren, the circular-arc tooth surface opening of the ripple sword circle-arc tooth of bottom is more than the ripple sword circle-arc tooth on top
Circular-arc tooth surface opening.
Preferably, the circle-arc tooth of the crest top land of the ripple sword circle-arc tooth by 2 semicircles circular arc it is smooth it is seamless splice and
Into.
Preferably, milling cutter surface is passivated polishing, and the coating provided with chromium aluminium nanometer technology.
Compared with prior art, mistake provided by the invention divides spiral arc side set ripple blade milling cutter to have the advantages that：
1st, the cutting force dislocation complementary method in mechanics, enters line misregistration spiral complementary design by Zhou Ren and shear blade, can have
Effect extruding force caused by cutting is disperseed up and down, reduces the recoil strength to cutter, can substantially reduce cutter in cutting
Resonance is produced with workpiece, prevents in cutting cutter and workpiece to produce vibration and the abnormal conditions such as tremble, improves processing efficiency, increase
Cutting-tool's used life is added.
2nd, the point of a knife mouth of shear blade, which is provided with, prevents collapsing circular arc R angle, it is possible to prevente effectively from shear blade cutting edge produces chipping situation, is more suitable for
The big processing cut and fed soon.
3rd, the compound complete spiral shell that all sword helicla flutes are collectively forming using the groove back of the body of parabolic structure and the bottom land of U-shape structure
Groove is revolved, not only cutting edge is rigidly strong for such design, and holds the bits discharge that bits cubical content is big, conveniently cuts.
4th, ripple sword circle-arc tooth is redesigned in the helical edges of all sword mistake partings, the bits under it is sawed are small microparticle shapes, this
Sample will not produce to cutter in being cut off to machining and twine knife, the phenomenon of viscous knife, particularly to the sticky material such as stainless steel, titanium alloy
The processing of material more has remarkable result.
5th, the design of ripple sword circle-arc tooth also largely improves the abrasion of cutting edge roundness, and machined surface is circular arc, can be with
Single-point stress is reduced, more effectively increases the abrasion of circular-arc tooth surface.
6th, according to the mistake of every Zhou Ren spiral angle point difference, the helix of ripple sword circle-arc tooth is also different.And
The wrong parting of tooth, recoil of the so more effective work in-process discrete workpieces to cutter are similarly generated between each bar Zhou Ren
Power, tool work piece is avoided to produce resonance.
7th, the circular arc concave bottom surface of ripple sword circle-arc tooth is also designed to parabola circular arc body, can strengthen the intensity of the blade flank of tooth,
Lower circular-arc tooth surface opening is big, is so easy to the discharge considered to be worth doing during cutting.
8th, the circle-arc tooth of the crest top land of ripple sword circle-arc tooth by 2 semicircles circular arc it is smooth it is seamless be spliced, reach knife
Has cutting edge life-span longer effect.
9th, milling cutter surface is passivated polishing, and using the coating process of chromium aluminium nanometer technology, makes the use of cutter
Life-span has obtained stronger lifting.
Brief description of the drawings
Fig. 1 is that the mistake that the present embodiment provides divides spiral arc side set ripple blade milling cutter schematic diagram.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Fig. 1 is that the mistake that the present embodiment provides divides spiral arc side set ripple blade milling cutter schematic diagram, and described mistake divides spiral arc
Side set ripple blade milling cutter includes shank 1 and blade 2, and blade 2 is provided with four Zhou Ren, and four Zhou Ren are respectively designed to not wait the angle of segmentation
Degree, while four Zhou Ren helicla flute is also designed to the angle of the spiral such as not, such as the γ helicla flutes and the spiral shell of λ helicla flutes in Fig. 1
Swing angle degree is different.Such design can substantially reduce cutter and produce resonance with workpiece in cutting.
First Zhou Ren is 0 °~3 °, 30 °~33 ° of spiral angle.Article 2 Zhou Ren is 85 °~87 °, 35 ° of spiral angle
~38 °.Article 3 Zhou Ren is 177 °~180 °, and spiral angle is 30 °~33 °.Article 4 Zhou Ren is 265 °~267 °, helical angle
35 °~38 ° of degree.
Such design concept can effectively prevent in cutting cutter and workpiece to produce vibration and the abnormal conditions such as tremble.This
It is the cutting force dislocation complementary method in mechanics, can be effectively that extruding force caused by cutting is scattered up and down, prevent from processing
Middle product produces with cutter to quiver altogether.And the general cutter used in conventional art, when all swords are cut, caused extruding force can not be quick
Release, this creates the terminal very strong resonance, cutting edge roundness is very big by very big recoil strength, the cutting edge abrasion of such cutter.
Cutter of the present invention just make use of the principle of mechanics well, to lift processing efficiency, add cutting-tool's used life.
Cutter Zhou Ren of the present invention uses the design of dislocation spiral segmentation method, it is possible to reduce to the recoil strength of cutter.Same bottom
Face can also produce such case when cutting, and also be designed to wrong parting, and such bottom surface can also reduce the recoil strength of cutting, can be with
Process velocity is improved, strengthens the service life of bottom surface cutting edge.
First shear blade is 0 °~3 °, and Article 2 shear blade is 85 °~87 °, and Article 3 shear blade is 177 °~180 °, Article 4
Shear blade is 265 °~267 °.Circular arc R angle 3 is collapsed provided with anti-in the point of a knife mouth of shear blade simultaneously, so it is possible to prevente effectively from shear blade cutting edge
Chipping situation is produced, is more suitable for the big processing cut and fed soon.
The design of this cutter helicla flute is also the cutting characteristic particular design according to cutter, and all sword helicla flutes are using compound
Spiral grooves, bottom land are U-shaped shapes, and such design increases the cubical content that cutter holds bits.In the portion for upwardly extending the back of the body of groove
Point, using parabolical curved body structure, a compound complete spiral grooves are formed with bottom land, it is such to design not only cutter
Blade is rigidly strong, and holds the bits discharge that bits cubical content is big, conveniently cuts.
This cutter redesigns ripple sword circle-arc tooth 4, the design source of this ripple sword circle-arc tooth in the helical edges of all sword mistake partings
When the principle of sawtooth, general sawtooth saw object, the bits under it is sawed are small microparticle shapes, in so being cut off to machining not
Cutter can be produced and twine knife, the phenomenon of viscous knife, the particularly processing to cohesive materials such as stainless steel, titanium alloys more has notable effect
Fruit.
According to the mistake of every Zhou Ren spiral angle point difference, the helix of ripple sword circle-arc tooth is also different.It is and each
The wrong parting of tooth is similarly generated between bar Zhou Ren, such as：Tooth pitch be 1.5mm wrong parting ripple sword arc cutter, all sword numbers
For 4.On the basis of first the first tooth, the spacing of first week sword and Article 3 Zhou Ren is 0.75mm, and second week sword and the
The spacing of surrounding sword is not equal to 0.75mm.Reason is that the spiral angle of first week sword and the 3rd week sword is 35 °, second week sword with
The spiral angle of 4th week sword is 38 °, so it is poor to produce dividing for spiral angle lift angle value.So more effective work in-process
Discrete workpieces avoid tool work piece from producing resonance the recoil strength of cutter.
And the particular design of ripple sword circle-arc tooth also largely improves the abrasion of cutting edge roundness.General saw blade sawing
When, the tooth form of saw blade is triangular form shape mostly, so in machining, when the position of three apex tips processes, especially
When being rapid processing, it is easy to cause the abrasion of crown.It is designed to circular arc type by this cutter, and machined surface is circular arc, so may be used
To reduce single-point stress, the abrasion of circular-arc tooth surface is more effectively increased.Circular arc concave bottom surface, parabola circular arc body is also designed to,
The intensity of the blade flank of tooth can be strengthened, lower circular-arc tooth surface opening is big, is so easy to the discharge considered to be worth doing during cutting.The circle-arc tooth of crest top land
It is to be spliced by the circular arc of 2 semicircles, particularly 2 semi arches want smooth being stitched together without any vestige, can be only achieved
Cutting edge roundness life-span longer effect.This tooth form is also the most important thing of whole cutter, has been directly connected to the use of cutter
Life-span.
This cutter overall structure is novel, coordinates the U-shaped bottom of trench and the parabolical groove back of the body of helicla flute groove so that cutter more has
Intensity and chip removal are smooth.Zhou Ren and shear blade dislocation are complementary, and Zhou Ren circle-arc tooth mistake divides flute profile, more strengthens the cutting energy of cutter
Power.In order to further enhance cutting-tool's used life, polishing is passivated on surface, using the coating of chromium aluminium nanometer technology
Technique, cutting-tool's used life is set to have obtained stronger lifting.
This cutter can be widely applied to the processing of various types of materials, particular for difficult to machine material, such as：Stainless steel, titanium
Alloy, nickel-base alloy etc., there is obvious Optimality.Cutter uses the particular design of geometric angle, and processing resection rate is big, precision
Height, service life length, and with the shockproof anti-characteristic quivered.
Milling cutter provided by the invention is the special process cutter needed for modern mechanical processing, and its development and usage is to summarize
The persistent ailments such as processing efficiency is low, cutter life is short in current machining, and the more of current machined material are recognized
On the basis of knowledge, cutting principle and mechanics principle are fully combined, cutter work in-process is obtained bigger distillation.It can be extensive
Apply to numerous manufacturings such as the cutting of aviation boat titanium special material, electromechanical, auto parts and components manufacture, mould processing, be milling
The important technology reform of class processing.
Claims (10)
1. a kind of mistake divides spiral arc side set ripple blade milling cutter, it is characterised in that：Including shank (1) and blade (2), blade (2) bag
Zhou Ren and shear blade are included, Zhou Ren and shear blade dislocation are complementary；A plurality of Zhou Ren is into the angle for not waiting segmentation, and each bar Zhou Ren helicla flute
Into the angle for not waiting spiral；A plurality of shear blade is also into the angle for not waiting segmentation, and the point of a knife mouth of shear blade is provided with and prevents collapsing circular arc R angle (3)；
The Zhou Ren is provided with ripple sword circle-arc tooth (4).
2. a kind of mistake as claimed in claim 1 divides spiral arc side set ripple blade milling cutter, it is characterised in that：The Zhou Ren has four
Bar；First Zhou Ren is 0 °~3 °, 30 °~33 ° of spiral angle；Article 2 Zhou Ren is 85 °~87 °, 35 °~38 ° of spiral angle；
Article 3 Zhou Ren is 177 °~180 °, and spiral angle is 30 °~33 °；Article 4 Zhou Ren is 265 °~267 °, 35 ° of spiral angle
~38 °.
3. a kind of mistake as claimed in claim 2 divides spiral arc side set ripple blade milling cutter, it is characterised in that：The shear blade has four
Bar；First shear blade is 0 °~3 °, and Article 2 shear blade is 85 °~87 °, and Article 3 shear blade is 177 °~180 °, Article 4 shear blade
For 265 °~267 °.
4. a kind of mistake as claimed in claim 1 divides spiral arc side set ripple blade milling cutter, it is characterised in that：The spiral of the Zhou Ren
The bottom land of groove is U-shape structure, and the part for upwardly extending the back of the body of groove is the curved body structure of parabolic shape, and the groove of parabolic structure is carried on the back
A compound complete spiral grooves are collectively forming with the bottom land of U-shape structure.
5. a kind of mistake as claimed in claim 1 divides spiral arc side set ripple blade milling cutter, it is characterised in that：According to every Zhou Ren's
The mistake of spiral angle point difference, the helix of corresponding ripple sword circle-arc tooth (4) are also different；Ripple sword circular arc is formed between each bar Zhou Ren
The wrong parting of tooth (4).
6. a kind of mistake as claimed in claim 1 divides spiral arc side set ripple blade milling cutter, it is characterised in that：The ripple sword circle-arc tooth
(4) machined surface is circular arc.
7. a kind of mistake as claimed in claim 7 divides spiral arc side set ripple blade milling cutter, it is characterised in that：The ripple sword circle-arc tooth
(4) circular arc concave bottom surface is parabola circular arc body.
8. a kind of mistake as claimed in claim 1 divides spiral arc side set ripple blade milling cutter, it is characterised in that：On the Zhou Ren, under
The circular-arc tooth surface opening of the ripple sword circle-arc tooth (4) in portion is more than the circular-arc tooth surface opening of the ripple sword circle-arc tooth (4) on top.
9. a kind of mistake as claimed in claim 1 divides spiral arc side set ripple blade milling cutter, it is characterised in that：The ripple sword circle-arc tooth
(4) circle-arc tooth of crest top land smooth seamless is spliced by the circular arc of 2 semicircles.
10. a kind of mistake as claimed in claim 1 divides spiral arc side set ripple blade milling cutter, it is characterised in that：Milling cutter surface is carried out
It is passivated polishing, and the coating provided with chromium aluminium nanometer technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710738532.9A CN107350532A (en) | 2017-08-24 | 2017-08-24 | A kind of mistake divides spiral arc side set ripple blade milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710738532.9A CN107350532A (en) | 2017-08-24 | 2017-08-24 | A kind of mistake divides spiral arc side set ripple blade milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107350532A true CN107350532A (en) | 2017-11-17 |
Family
ID=60288996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710738532.9A Pending CN107350532A (en) | 2017-08-24 | 2017-08-24 | A kind of mistake divides spiral arc side set ripple blade milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107350532A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60118411A (en) * | 1983-11-30 | 1985-06-25 | Nec Corp | End mill |
| US20070243030A1 (en) * | 2006-04-17 | 2007-10-18 | Ronald Staedt | Unequal Helical Flute Thread Mill |
| CN203030939U (en) * | 2013-01-18 | 2013-07-03 | 奥斯机(上海)精密工具有限公司 | Unequal partition and unequal lead cutter used for hard alloy processing |
| CN203140859U (en) * | 2013-03-20 | 2013-08-21 | 上海冠钻精密工具有限公司 | Unequal-blade round-nose end milling cutter |
| CN104439466A (en) * | 2013-09-24 | 2015-03-25 | 上海冠钻精密工具有限公司 | Milling cutter |
| CN106270697A (en) * | 2016-10-10 | 2017-01-04 | 刘浩 | Circumferential cutting edge is the milling cutter of parabolic shape |
-
2017
- 2017-08-24 CN CN201710738532.9A patent/CN107350532A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60118411A (en) * | 1983-11-30 | 1985-06-25 | Nec Corp | End mill |
| US20070243030A1 (en) * | 2006-04-17 | 2007-10-18 | Ronald Staedt | Unequal Helical Flute Thread Mill |
| CN203030939U (en) * | 2013-01-18 | 2013-07-03 | 奥斯机(上海)精密工具有限公司 | Unequal partition and unequal lead cutter used for hard alloy processing |
| CN203140859U (en) * | 2013-03-20 | 2013-08-21 | 上海冠钻精密工具有限公司 | Unequal-blade round-nose end milling cutter |
| CN104439466A (en) * | 2013-09-24 | 2015-03-25 | 上海冠钻精密工具有限公司 | Milling cutter |
| CN106270697A (en) * | 2016-10-10 | 2017-01-04 | 刘浩 | Circumferential cutting edge is the milling cutter of parabolic shape |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8286536B2 (en) | Milling cutter manufacturing method | |
| US20180133808A1 (en) | Efficient twist drill for layered drilling | |
| CN204565247U (en) | Runner of blisk efficient Flank machining integral annular milling cutter | |
| CN104959667A (en) | Milling cutter provided with equidistant arc head on eccentric shape flank surface and grinding method | |
| CN101804478A (en) | Compound milling cutter for machining fir tree type blade root wheel groove | |
| CN101786182B (en) | Contour milling cutter and manufacture method of cutting part thereof | |
| CN106903350B (en) | The sharp interchangeable cylindrical drill of sword twin-stage of fibre reinforced composites drilling | |
| CN102489765A (en) | Non-slot-shared step cutter | |
| CN107350532A (en) | A kind of mistake divides spiral arc side set ripple blade milling cutter | |
| CN201320631Y (en) | Rear wave edge roughing milling cutter | |
| CN109277585A (en) | A kind of Ti3Al alloy guide vane inner ring method for turning | |
| CN206382607U (en) | A kind of diamond screw-on cutter | |
| CN201120491Y (en) | Single end blade chip flute R butt mill | |
| CN207431360U (en) | A kind of high temperature alloy milling cutter | |
| CN104249185B (en) | Slotting cutter | |
| CN209647691U (en) | Multifunctional milling cutter | |
| CN207563803U (en) | A kind of indexable insert tip, throw away tip for big-feed milling | |
| CN102837053A (en) | End mill and method for milling compressor scroll by using the same | |
| CN207577519U (en) | A kind of waveform milling cutter for titanium alloy roughing | |
| CN208728818U (en) | Forming reamer | |
| CN102328125A (en) | End milling cutter | |
| CN215845938U (en) | Aviation titanium alloy profile milling cutter | |
| CN209174980U (en) | A kind of processing aluminium alloy TiCN based ceramic metal slotting cutter | |
| CN214978018U (en) | Staggered tooth composite milling cutter | |
| CN216828833U (en) | Tungsten steel double-end milling cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |