CN1226742C - Two piece thin type optical disk box - Google Patents
Two piece thin type optical disk box Download PDFInfo
- Publication number
- CN1226742C CN1226742C CN 01144493 CN01144493A CN1226742C CN 1226742 C CN1226742 C CN 1226742C CN 01144493 CN01144493 CN 01144493 CN 01144493 A CN01144493 A CN 01144493A CN 1226742 C CN1226742 C CN 1226742C
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- optical disk
- lower cover
- loam cake
- disk cartridge
- center
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Abstract
The present invention relates to a thin double-piece optical disk box which comprises an upper cover and a lower cover, wherein each optical disk has a central hole, and the upper cover and the lower cover are respectively provided with a central span position when manufactured and molded; the two optical disks are respectively and mutually clamped with the central span positions of the upper cover and the lower cover by utilizing the central holes of the two optical disks and are stored in the optical disk box. The thickness of the thin double-piece optical disk box is from about 5 to 5.5mm after the upper cover and the lower cover are clamped.
Description
Technical field
The present invention relates to a kind of optical disk cartridge of storing two CDs, particularly a kind of its thickness only is the thin compact disc box between the 5mm to 5.5mm.
Background technology
Optical recording media has that the capacity of storing is big, signal is accurate and data are difficult for advantages such as disappearance, so optical recording media is widely used among the ordinary consumer.Also therefore driven the development of the optical disk cartridge that stores optical recording media.With the CD in the optical recording media is example, the most frequently used CD of storing, be the three-member type optical disk cartridge, it comprises that mainly a lower cover, the loam cake that can raise and be located at the storing casket in the lower cover space, the center of circle of this storing casket is provided with the center amphi-position, and the card button of multijaw shape, cd centre's contraposition can be put into when storing, then can push center card button amphi-position during taking-up, make and contract in the claw-like card button and discharge CD.
Yet above-mentioned three-member type optical disk cartridge more because put the configuration of casket, and causes its thickness to be at least about about 10mm except its manufacturing cost height, assembling are more consuming time, and this thickness is the several times of original disk thickness, causes to store when transporting all that the utmost point takes up space.
Recently, occur a kind of thickness on the market and only be half thin formula optical disk cartridge of three-member type optical disk cartridge, No. 417821 patent is announced in Taiwan as the previous application of the applicant, wherein disclose a kind of two-piece type optical disk cartridge, under the condition of the every function that does not change original optical disk cartridge, to being about about 5.2mm, this patent is saved the purpose that the mode of placing casket realizes reducing thickness thus with the reduced down in thickness of optical disk cartridge.
Yet such improvement still can not be satisfied the demand that the consumer stores its CD that increases sharply, and the present invention is promptly at this, proposes a kind ofly can put into the optical disk cartridge of maximum CDs in minimum space.
Summary of the invention
The purpose of this invention is to provide a kind of two piece thin type formula optical disk cartridge of putting two CDs.
Two piece thin type optical disk box provided by the invention has a loam cake and a lower cover, and this loam cake engages the back and produce a rotating shaft with this lower cover, and this loam cake and this lower cover are to utilize that this rotating shaft is relative rotates, to finish the operation of folding, wherein:
This loam cake and this lower cover form a center respectively amphi-position when making moulding, this center comprises three cartridge clip pawls amphi-position at least, this cartridge clip pawl is one to have the L type structure of horizontal teat and upright teat, the horizontal teat of this L type structure is that amphi-position radiation direction or counter radiation direction extended along this center, and with this loam cake or the parallel connection of this lower cover, and the setting of the cartridge clip pawl of this loam cake and the cartridge clip pawl of this lower cover is not make symmetry with this rotating shaft, in addition, this loam cake and this lower cover are about between the 5mm to 5.5mm at the thickness range behind the fastening.
Cartridge clip pawl of the present invention is to have the L type structure of horizontal teat and upright teat for one, and the horizontal teat of L type structure is along extending outward or toward interior radiation direction.The upright teat of cartridge clip pawl can comprise a male member, and male member is the top away from center one side that is positioned at upright teat.The upright teat of cartridge clip pawl also can be inclination, and the direction of its inclination is deep direction.In addition, the upright teat of cartridge clip pawl not only tilts to deep direction, and vertical teat has the male member away from one side top, center that is positioned at upright teat.
Loam cake with cover down, the first protection rib and the second protection rib are arranged, the protection bottom when the CD placement to be provided with bottom and the optical disk cartridge contact friction of avoiding CD, and makes corrupted data in the CD; The 3rd protection rib is in order to provide the protection of CD top, avoids CD directly to be subjected to pressure from the top, causes the distortion of CD or breaks; Material can have suitable color, can make CD avoid the light direct irradiation and shortens life-span of data on the CD.
Two piece thin type formula optical disk cartridge of the present invention also comprises paper box lid, and both middle formed long and narrow spaces of the Jiong type rear wall that paper box closes the lid can be put into a simple and clear label, so that the user looks for the CD that needs.The first side wall stage casing of lower cover is the nick shape, the usefulness of both hands extracting when opening.Second lateral wall of loam cake engages with the 5th madial wall with the 4th madial wall of lower cover respectively with the 3rd lateral wall, and this is to utilize the fastening mechanism in salient point and pivot hole to realize.Wherein the first side wall, second lateral wall in correspondence with each other and the 4th madial wall and the 3rd lateral wall in correspondence with each other and the 5th madial wall all have the dustproof effect.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is the combination stereo appearance figure of optical disk cartridge of the present invention;
Shown in Fig. 2 A center of the present invention first embodiment amphi-position;
Shown in Fig. 2 B second embodiment of cartridge clip pawl of the present invention;
Shown in Fig. 2 C the 3rd embodiment of cartridge clip pawl of the present invention;
Shown in Fig. 2 D the 4th embodiment of cartridge clip pawl of the present invention;
Fig. 3 A is center of the present invention another embodiment amphi-position;
Fig. 3 B is center of the present invention another embodiment amphi-position.
Embodiment
The invention provides a kind of biplate dress thin compact disc box of putting two recording mediums, in the present embodiment, recording medium is example with the CD.Fig. 1 is a combination stereo appearance figure of the present invention; CD 5 has a center pit 51; optical disk cartridge 1 then has loam cake 2 and lower cover 3; loam cake 2 is provided with Jiong type rear wall 21, center amphi-position 22, second lateral wall 24, the 3rd lateral wall 25, the first protection rib 26, the second protection rib 27 and the 3rd protection rib 28, then be provided with on the lower cover 3 two prominent arms 31, center amphi-position 32, the first side wall 33, the 4th madial wall 34, the 5th madial wall 35, the first protection rib 36, the second protection rib 37 and the 3rd protect rib 38.Loam cake of the present invention 2 has each above-mentioned element respectively with lower cover 3 when making moulding, CD 5 is to utilize center pit 51 and center amphi-position 22 to be placed on optical disk cartridge 1 with 32 mutual the engaging interior, so loam cake 2 and lower cover 3 can be distinguished a ccontaining CD 5.
Jiong type rear wall 21 places of loam cake 2 are provided with two minor faces 211 and a long limit 212, and the minor face 211 of Jiong type rear wall 21 is provided with pivot hole 2110.On the two prominent arm 31 of lower cover 3 salient point 310 is arranged, the salient point 310 of two prominent arms can fasten with the pivot hole 2110 on the minor face 211 of Jiong type rear wall 21, to engage loam cake 2 of the present invention and lower cover 3, become an optical disk cartridge 1, and loam cake 2 engages the back and produces a rotating shaft X with lower cover 3, and loam cake 2 and lower cover 3 are to utilize that rotating shaft X is relative to be rotated, with the operation of realization folding, thickness after optical disk cartridge 1 of the present invention closes is about between the 5mm to 5.5mm, and its preferred embodiment is about 5.2mm.
Center of the present invention amphi-position 22 or 32 (following 32 is example amphi-position with the center) may be implemented in a variety of ways.Fig. 2 A is the center of the present invention enlarged drawing of 32 first embodiment amphi-position.The center amphi-position 32 is made of three cartridge clip pawls 322, and the figure left is the stereographic map of cartridge clip pawl 322, and right-hand is the outboard profile of cartridge clip pawl 322, and cartridge clip pawl 322 is one to have the L type structure of horizontal teat 3221 and upright teat 3222; The horizontal teat 3221 of L type structure be along the center amphi-position 32 counter radiation direction outstanding and with lower cover 3 parallel connections; The upright teat 3222 of L type structure can comprise a male member 3223, male member 3223 is to be positioned at the top of upright teat 3222 away from center one side, so, the center pit 51 that prevents CD 5 and center amphi-position 321 come off after engaging may, cause data to lose in order to avoid CD 5 is impaired.The cartridge clip pawl of loam cake 2 is that countershaft X is asymmetrical (as shown in Figure 1) mutually with the setting of the cartridge clip pawl 322 of lower cover 3, to realize optical disk cartridge of the present invention the purpose of 5mm to 5.5mm thickness is only arranged.
Fig. 2 B is the enlarged drawing of second embodiment of cartridge clip pawl 322 of the present invention, same, the figure left is the stereographic map of cartridge clip pawl 322, right-hand is the outboard profile of cartridge clip pawl 322, different with first embodiment of Fig. 2 A is, the horizontal teat 3221 of second embodiment extends along radiation direction, and the male member 3223 of vertical teat 3222 still is positioned at the top of upright teat 3222 away from center one side.
Fig. 2 C and Fig. 2 D are another embodiment of the structure that prevents that CD from coming off, and the upright teat 3222 of L type structure tilts among Fig. 2 C, and the direction of its inclination is deep direction; The upright teat 3222 of L type structure not only tilts with deep direction among Fig. 2 D, and vertical teat 3222 has male member 3223 and is positioned at the top of upright teat 3222 away from center one side.Cartridge clip pawl 322 among Fig. 2 C and Fig. 2 D also can be done the variation as Fig. 2 B, and promptly horizontal teat 3221 is to extend along the counter radiation direction.
Fig. 3 A is center of the present invention another embodiment of 32 amphi-position.The center 32 has three cartridge clip pawls 322 and three upright protruding arcs 323 that highly are lower than cartridge clip pawl 322 amphi-position, the arc length of upright protruding arc 323 is greater than the arc length of cartridge clip pawl 322, and upright protruding arc 323 is crisscross arranged with cartridge clip pawl 322, to realize optical disk cartridge of the present invention the purpose of 5mm to 5.5mm thickness is only arranged.
Fig. 3 B is center of the present invention another embodiment of 32 amphi-position.The center 32 has three cartridge clip pawls 322 and three upright protruding arcs 323 that highly differ amphi-position, and the arc length of upright protruding arc 323 is still greater than the arc length of cartridge clip pawl 322, and upright protruding arc 323 is crisscross arranged with cartridge clip pawl 322.Because the setting of the cartridge clip pawl 322 on loam cake 2 and the lower cover 3 is that countershaft X is asymmetrical mutually, therefore when loam cake 2 and lower cover 3 are gone up admittedly, the cartridge clip pawl of loam cake 2 is relative with the upright protruding arc of the part of lower cover 3 323, this upright protruding arc 323 partly can be 1.2mm to 1.3mm height, and the upright protruding arc 323 of other parts can be contour with cartridge clip pawl 322, and vice versa.Could realize that like this optical disk cartridge of the present invention only has the purpose of 5mm to 5.5mm thickness, yet above-mentioned various center is 32 embodiment amphi-position, all do not break away from make loam cake 2 the center amphi-position 22 with the center of lower cover 3 amphi-position 32 can be in 5mm to 5.5mm thickness range when closing suitably relative purpose.Therefore, any center is 22 or 32 variation amphi-position, not breaking away from the change of being made under the spirit of the present invention, all belongs to invention scope of the present invention.
Get back to Fig. 1, two piece thin type optical disk box of the present invention also comprises a paper box lid 23 that contains two minor faces 231 and a long limit 232, paper box lid 23 is included in the Taiwan of the previous application of the applicant and announces in the scope of No. 417821 patent, the minor face 231 of paper box lid 23 is provided with the salient point 2310 that the pivot hole 2110 with Jiong type rear wall 21 fastens, and the long limit 232 of paper box lid 23 is parallel with loam cake 2.Paper box lid 23 is with after Jiong type rear wall 21 combine, and its both formed long and narrow spaces in centre can be put into a simple and clear label, look for the CD 5 of needs to make things convenient for the user, or put into a poster paper is promoted this CD 5 for manufacturer usefulness.
The lower cover 3 of optical disk cartridge 1 also comprises a first side wall 33 that is positioned at the opposite side of rotating shaft X, and the stage casing of the first side wall 33 is the nick shape, and both hands grasp when opening.
The loam cake 2 of optical disk cartridge 1 comprises second lateral wall 24 vertical with rotating shaft X and the 3rd lateral wall 25, the second lateral walls 24 and the 3rd lateral wall 25 and is provided with pivot hole 241 and 251, and the stage casing of second lateral wall 24 is provided with a breach.The lower cover 3 of optical disk cartridge 1 comprises four madial wall 34 and five madial wall 35 vertical with rotating shaft X, the 4th madial wall 34 is relative with second lateral wall 24, the 5th madial wall 35 is relative with the 3rd lateral wall 25, and the stage casing of the 5th madial wall 35 is provided with a breach, the 4th madial wall 34 and the 5th madial wall 35 be respectively equipped with can with pivot hole 241 on second lateral wall 24 and the 3rd lateral wall 25 and 251 salient points 341 and 351 that fasten so that loam cake 2 firmly engages in order to avoid produce relative rotatablely moving with lower cover 3.The above-mentioned breach that is separately positioned on second lateral wall, 24 stage casings and the 5th madial wall 35 stage casings also can be arranged on respectively on the 3rd lateral wall 25 stage casings and the 4th madial wall 34 stage casings of its opposite side instead.In addition, pivot hole 241 on second lateral wall 24 and the 3rd lateral wall 25 and 251 replaceable be salient point, correspondingly, salient point 341 on the 4th madial wall 34 and the 5th madial wall 35 and 351 replaceable be the pivot hole, so, second lateral wall 24 and the 3rd lateral wall 25 still can utilize the salient point on it to fasten with the pivot hole of the 4th madial wall 34 and the 5th madial wall 35 respectively, can realize the purpose that loam cake 2 and lower cover 3 are firmly engaged equally.And the breach in the stage casing of second lateral wall 24 and the 5th madial wall 35 is respectively with CD 5 off centers 22,32 usefulness amphi-position for the ease of the user.
Above-mentioned the first side wall 33, second lateral wall 24 in correspondence with each other and the 4th madial wall 34 and the 3rd lateral wall 25 in correspondence with each other and the 5th madial wall 35 all have the dustproof effect.And for better dustproof effect, when loam cake 2 does not have a paper box and covers 23, then lower cover 3 has the 6th sidewall 39 that is positioned at the opposite side of the first side wall 33, so that loam cake 2 all has the effect that is isolated from the outside with lower cover 3 four sides of optical disk cartridge 1 when closing, to realize complete dustproof purpose.
Loam cake 2 of the present invention comprises respectively and center 22, the 32 settings amphi-position first protection ribs 26 and 36 at grade with lower cover 3; the first protection rib 26,36 respectively and amphi-position 22,32 distance can be between about 8mm to 9mm at the center, and first protects the height of rib 26,36 projectioies to can be between about 0.15mm to 0.16mm.Loam cake 2 also comprises respectively and the first protection rib, 26,36 settings, the second protection rib 27,37 at grade with lower cover 3; the second protection rib 27,37 and center distance amphi-position can be between about 52mm to 53mm, and the height of the second protection rib, 27,37 projectioies can be between about 0.15mm to 0.16mm.The protection of the first protection rib 26,36 bottom the second protection rib 27,37 is when putting in order to CD 5 to be provided avoided making corrupted data because of the whole bottom of CD 5 and the contact friction of optical disk cartridge 1.
Loam cake 2 also comprises respectively and the second protection rib, 27,37 settings the 3rd protection rib 28,38 at grade with lower cover 3; the 3rd protection rib 28,38 and center amphi-position 22,32 distance can be between about 53mm to 55mm, and the height of the 3rd protection rib 28,38 projectioies can be between about 1.5mm to 1.6mm.The 3rd protection rib 28,38 provides the protection of CD 5 tops, avoids causing the distortion of CD 5 or breaking because of CD 5 directly is subjected to pressure from the top.
The loam cake 2 of optical disk cartridge 1 of the present invention can have suitable color with the material of lower cover 3, shortens data life-span on the CD except that increasing the interior CD 5 of optical disk cartridge 1 of more can avoiding attractive in appearance because of being subjected to the light direct irradiation.
In sum; optical disk cartridge of the present invention is realized dustproof and the fixing effect of CD amphi-position by each sidewall and center respectively; realize the purpose of abrasionproof by first and second protection rib; utilize the 3rd protection rib to obtain measuring body advantage; put into the space of poster paper in addition; therefore, the present invention is under the condition that does not change the every function of optical disk cartridge, is implemented in thickness only for depositing the purpose of two CDs in the optical disk cartridge of 5mm to 5.5mm.
Though the present invention discloses as above by a plurality of preferred embodiments; yet be not in order to limit the present invention; any person skilled in the art scholar without departing from the spirit and scope of the present invention; should do various changes and retouching, thus protection scope of the present invention when with appended claim scope the person of being defined be as the criterion.
Claims (22)
1. two piece thin type optical disk box, this optical disk cartridge has a loam cake and a lower cover, and this loam cake engages the back and produce a rotating shaft with this lower cover, and this loam cake and this lower cover are to utilize that this rotating shaft is relative rotates, and to finish the operation of folding, it is characterized in that:
This loam cake and this lower cover form a center respectively amphi-position when making moulding, this center comprises three cartridge clip pawls amphi-position at least, this cartridge clip pawl is one to have the L type structure of horizontal teat and upright teat, the horizontal teat of this L type structure is that amphi-position radiation direction or counter radiation direction extended along this center, and with this loam cake or the parallel connection of this lower cover, and the setting of the cartridge clip pawl of this loam cake and the cartridge clip pawl of this lower cover is not make symmetry with this rotating shaft, in addition, this loam cake and this lower cover are about between the 5mm to 5.5mm at the thickness range behind the fastening.
2. optical disk cartridge as claimed in claim 1 is characterized in that the upright teat of described L type structure also comprises a male member, and this male member is positioned at the top away from center one side of this upright teat.
3. optical disk cartridge as claimed in claim 1 is characterized in that the upright teat of described L type structure tilts, and vergence direction is deep direction.
4. optical disk cartridge as claimed in claim 3 is characterized in that the upright teat of described L type structure also comprises a male member, and this male member is positioned at the top away from center one side of this upright teat.
5. optical disk cartridge as claimed in claim 1, it is characterized in that described center also comprises three upright protruding arcs that highly are lower than described cartridge clip pawl amphi-position at least, this upright protruding arc and described cartridge clip pawl are crisscross arranged, and the arc length of this upright protruding arc is greater than the arc length of described cartridge clip pawl.
6. optical disk cartridge as claimed in claim 5 is characterized in that the upright teat of described L type structure also comprises a male member, and this male member is positioned at the top of this upright teat away from center one side.
7. optical disk cartridge as claimed in claim 5 is characterized in that the upright teat of described L type structure tilts, and vergence direction is deep direction.
8. optical disk cartridge as claimed in claim 7 is characterized in that the upright teat of described L type structure also comprises a male member, and this male member is positioned at the top of described upright teat away from center one side.
9. optical disk cartridge as claimed in claim 5, it is characterized in that, when described loam cake and described lower cover close, the upright protruding arc of described loam cake and the upright protruding arc of described lower cover have a plurality of first laps and a plurality of second lap respectively, and the upright protruding arc of this loam cake is identical with the height of this cartridge clip pawl at the height of this several first lap, and the upright protruding arc of this lower cover also the height with this cartridge clip pawl is identical at the height of this several second lap.
10. optical disk cartridge as claimed in claim 9 is characterized in that the upright teat of described L type structure also comprises a male member, and this male member is positioned at the top away from center one side of this upright teat.
11. optical disk cartridge as claimed in claim 9 is characterized in that the upright teat of described L type structure tilts, vergence direction is deep direction.
12. optical disk cartridge as claimed in claim 11 is characterized in that the upright teat of described L type structure also comprises a male member, this male member is positioned at the top of this upright teat away from center one side.
13. optical disk cartridge as claimed in claim 1; it is characterized in that described loam cake and lower cover also comprise respectively with this center amphi-position be provided with at grade first the protection rib; this first protection rib and this center distance amphi-position are about between the 8mm to 9mm, and the height of this first protection rib projection is about between the 0.15mm to 0.16mm.
14. optical disk cartridge as claimed in claim 1; it is characterized in that described loam cake and lower cover also comprise respectively with this center amphi-position be provided with at grade second the protection rib; this second protection rib and this center distance amphi-position are about between the 52mm to 53mm, and the height of this second protection rib projection is between the 0.15mm to 0.16mm.
15. optical disk cartridge as claimed in claim 1; it is characterized in that described loam cake and lower cover also comprise respectively with this center amphi-position be provided with at grade the 3rd the protection rib; the 3rd protection rib and this center distance amphi-position are about between the 53mm to 55mm, and the height of the 3rd protection rib projection is between the 1.5mm to 1.6mm.
16. optical disk cartridge as claimed in claim 1 is characterized in that described loam cake and lower cover are opaque material.
17. optical disk cartridge as claimed in claim 1 is characterized in that described loam cake also comprises one and has the Jiong type rear wall that two minor faces and are grown the limit, the minor face of this Jiong type rear wall is provided with the pivot hole, and the long limit of this Jiong type rear wall is and this shaft parallel.
18. optical disk cartridge as claimed in claim 1 is characterized in that also comprising a paper box lid with two minor faces and a long limit, the minor face of this paper box lid has the salient point that the pivot hole with this Jiong type rear wall fastens, and the long limit of this paper box lid is parallel with described loam cake.
19. optical disk cartridge as claimed in claim 1 is characterized in that described lower cover also comprises the two prominent arm with salient point, the salient point of the prominent arm of this pair is that the pivot hole on the minor face with this Jiong type rear wall fastens.
20. optical disk cartridge as claimed in claim 1, it is characterized in that described lower cover or loam cake also comprise a first side wall that is positioned at the opposite side of this rotating shaft, and the stage casing of this first side wall is the nick shape, the usefulness of both hands extracting when opening, described loam cake or the lower cover that does not have the first side wall also comprises second lateral wall vertical with this rotating shaft and the 3rd lateral wall, and this second lateral wall and the 3rd lateral wall have pivot hole or salient point.
21. optical disk cartridge as claimed in claim 20 is characterized in that there is a breach in the stage casing of this second lateral wall, in order to finger described recording medium is broken away from described center amphi-position.
22. optical disk cartridge as claimed in claim 20, it is characterized in that described loam cake or lower cover with the first side wall also comprises four madial wall vertical with this rotating shaft and the 5th madial wall, the 4th madial wall is relative with this second lateral wall, the 5th madial wall is relative with the 3rd lateral wall, and there is a breach in the stage casing of the 5th madial wall, in order to finger described recording medium is broken away from described center amphi-position, and the 4th madial wall and the 5th madial wall have the pivot hole of this second lateral wall and the 3rd lateral wall or the salient point or the pivot hole of salient point fastening respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144493 CN1226742C (en) | 2001-12-19 | 2001-12-19 | Two piece thin type optical disk box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144493 CN1226742C (en) | 2001-12-19 | 2001-12-19 | Two piece thin type optical disk box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427412A CN1427412A (en) | 2003-07-02 |
| CN1226742C true CN1226742C (en) | 2005-11-09 |
Family
ID=4677623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01144493 Expired - Fee Related CN1226742C (en) | 2001-12-19 | 2001-12-19 | Two piece thin type optical disk box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1226742C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434751B (en) * | 2013-09-03 | 2017-01-04 | 苏州巴吉赛车科技有限公司 | A kind of Portable ball cage protective clip |
| CN104505113B (en) * | 2014-12-31 | 2017-03-15 | 苏州互盟信息存储技术有限公司 | A kind of front-supporting type double-surface compact disc case and its take out and disc system and take out disk method |
-
2001
- 2001-12-19 CN CN 01144493 patent/CN1226742C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1427412A (en) | 2003-07-02 |
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Granted publication date: 20051109 Termination date: 20101219 |