LU503584B1 - Dual-piston spirally separable connection type underwater 3d printer - Google Patents
Dual-piston spirally separable connection type underwater 3d printer Download PDFInfo
- Publication number
- LU503584B1 LU503584B1 LU503584A LU503584A LU503584B1 LU 503584 B1 LU503584 B1 LU 503584B1 LU 503584 A LU503584 A LU 503584A LU 503584 A LU503584 A LU 503584A LU 503584 B1 LU503584 B1 LU 503584B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- cabin
- power
- spinning
- piston
- spirally
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000007639 printing Methods 0.000 claims abstract description 22
- 238000009987 spinning Methods 0.000 claims description 73
- 239000000463 material Substances 0.000 claims description 63
- 239000003795 chemical substances by application Substances 0.000 claims description 40
- 238000005192 partition Methods 0.000 claims description 13
- 230000001502 supplementing effect Effects 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 6
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 238000010146 3D printing Methods 0.000 description 5
- 239000002923 metal particle Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000003350 kerosene Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229940072056 alginate Drugs 0.000 description 2
- 235000010443 alginic acid Nutrition 0.000 description 2
- 229920000615 alginic acid Polymers 0.000 description 2
- 235000010418 carrageenan Nutrition 0.000 description 2
- 229920001525 carrageenan Polymers 0.000 description 2
- 229940113118 carrageenan Drugs 0.000 description 2
- 239000000679 carrageenan Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical group [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
- B63G2008/002—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/30—Propulsive elements directly acting on water of non-rotary type
- B63H1/32—Flaps, pistons, or the like, reciprocating in propulsive direction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention discloses a dual-piston spirally separable connection type underwater 3D printer, including a forward power device, a printing device and a control module. The power device and printing device of the present invention are spirally separable and can be replaced under water and then continue to work without interruption, thereby the efficiency is higher and maneuverability is higher. Since the printer does not need to emerge from the water for manual replacement, and underwater automatic replacement mode is used, it is more concealed and has a higher intelligence degree.
Description
BL-5633
DUAL-PISTON SPIRALLY SEPARABLE CONNECTION TYPE LUS03584
UNDERWATER 3D PRINTER
[01] The present invention relates to the technical field of underwater robots, in particular to a dual-piston spirally separable connection type underwater 3D printer.
[02] 3D printing is a rapid prototyping technology based on a material stacking method, which can achieve rapid construction and enable creation of a large number of new building structures that are hard or even impossible to construct by traditional building technology.
[03] A 3D printing technology has been applied to various fields in China, but the exploration of an underwater 3D printing technology has not yet begun. The present invention relates to an underwater 3D printer. The 3D printer directly utilizes seawater resources, and a spinning agent in the printer is cured when encountering seawater to form filaments, forming a desired structure.
[04] The technical problem to be solved by the present invention is to provide a dual-piston spirally separable connection type underwater 3D printer. A power device and a printing device of the present invention may be separated, and are connected in a screw-in connection manner and separated in a screw-out separation manner. Since consumption rates of the spinning material in the spinning material storage cabin and the power material in the power material storage cabin are inconsistent, when one of the two cabins consumes the material first, the printing device and the power device may be separated by rotary disengaging, and a cabin with sufficient materials in a prepared backup power device or printing device is selected underwater for connection again, and then continues to work without interruption.
[05] In order to solve the above technical problem, the present invention uses the following technical solution:
[06] a dual-piston spirally separable connection type underwater 3D printer, including a forward power device, a printing device and a control module;
[07] the power device includes a power reaction cabin, a power material storage cabin and a first electric booster cabin in sequence from right to left; the power reaction cabin is provided with a water supply valve;
[08] the power reaction cabin and the power material storage cabin are separated by a partition, and a power material in the power material storage cabin may enter the power reaction cabin; at least two jet thrusters are evenly arranged on a circumferential wall of the power reaction cabin,
[09] the first electric booster cabin is internally provided with a first electric cylinder, a first connecting rod and a first piston; the right side of the first electric cylinder is fixed on the first piston through the first connecting rod, and the first piston withstands the power material in the power material storage cabin, 1
BL-5633
[10] the printing device includes a second electric booster cabin, a spinning agent LU503584 storage cabin and a spinning cabin in sequence from right to left;
[11] the spinning cabin and the spinning agent storage cabin are separated by a partition, and a spinning agent in the spinning agent storage cabin may be sprayed into the spinning cabin; an opening is arranged on the left side of the spinning cabin;
[12] the second electric booster cabin is internally provided with a second electric cylinder, a second connecting rod and a second piston; the left side of the second electric cylinder is fixed on the second piston through the second connecting rod, and the second piston withstands the spinning agent in the spinning agent storage cabin;
[13] the power device and the printing device are connected through a connection component; the connection component includes a connection probe and a first spirally connected tooth which are arranged outside the left side of the first electric booster cabin, and a connection probe interface and a second spirally connected tooth which are arranged outside the right side of the second electric booster cabin; and the first spirally connected tooth and the second spirally connected tooth are matched with each other and are in detachable buckled connection.
[14] the control module is fixed on the power device.
[15] In one implementation, 4 - 6 water inlet supplementing ports are evenly arranged in a circumferential wall of the spinning cabin close to the partition, and an opening direction of the water inlet supplementing ports is rightward.
[16] In one implementation, the power material storage cabin includes a power material outlet valve, the power material outlet valve is located on the partition between the power material storage cabin and the power reaction cabin and extends into the power reaction cabin, and the power material is contained in the power material storage cabin; the spinning agent storage cabin includes a spinning nozzle; the spinning nozzle is located on the partition between the spinning agent storage cabin and the spinning cabin and extends into the spinning cabin, and the spinning agent is contained in the spinning agent storage cabin.
[17] In one implementation, the power material outlet valve is a check valve.
[18] In one implementation, the power material is a substance that may react with water to produce gas and/or energy.
[19] In one preferred implementation, the power material is selected from sodium metal particles or sodium metal powder and gel-like liquid formed by kerosene or other nonreactive oil substances.
[20] In one implementation, the spinning agent is selected from carrageenan or alginate fibers or other gel-like liquid that may be solidified when encountering chloride ions.
[21] Compared with the prior art, the present invention has the following beneficial effects:
[22] the power device and the printing device of the present invention may be separated, and are connected in a screw-in connection manner and separated in a screw-out separation manner. 2
BL-5633
BRIEF DESCRIPTION OF THE DRAWINGS LUS03584
[23] The specific implementations of the present invention will be described in further detail below with reference to the accompanying drawings.
[24] FIG 1 is a schematic sectional view of an underwater printer described in the present invention;
[25] FIG 2 is a schematic top view of an underwater printer described in the present invention;
[26] FIG 3 is a schematic side view of an underwater printer described in the present invention;
[27] FIG 4 is a schematic rear view of an underwater printer described in the present invention; and
[28] FIG 5 is an expanded schematic view of a spiral connection port of a power device and a printing device of the present invention.
[29] In order to describe the present invention more clearly, the present invention will be further described below in combination with preferred embodiments. Those of ordinary skill in the art should understand that the content specifically described below is illustrative rather than restrictive and should not limit the scope of protection of the present invention.
[30] It should be noted that when an element is referred to as being “fixed to” or “arranged on” another element, the element may be directly or indirectly on another element. When an element is referred to as being “connected to” another element, the element may be directly or indirectly connected to another element.
[31] Referring to FIGs. 1 - 5, as an aspect of the present invention, a dual-piston spirally separable connection type underwater 3D printer includes a forward power device 100, a printing device 200 and a control module 300;
[32] the power device 100 includes a power reaction cabin 110, a power material storage cabin 120 and a first electric booster cabin 130 in sequence from right to left; the power reaction cabin 110 is provided with a water supply valve 111;
[33] the power reaction cabin 110 and the power material storage cabin 120 are separated by a partition, and a power material 121 in the power material storage cabin 120 may enter the power reaction cabin 110; at least four jet thrusters 112 are evenly arranged on a circumferential wall of the power reaction cabin 110;
[34] the first electric booster cabin 130 is internally provided with a first electric cylinder 131, a first connecting rod 132 and a first piston 133; the right side of the first electric cylinder 131 is fixed on the first piston 133 through the first connecting rod 132, and the first piston 133 withstands the power material 121 in the power material storage cabin 120;
[35] the printing device 200 includes a second electric booster cabin 230, a spinning agent storage cabin 220 and a spinning cabin 210 in sequence from right to left;
[36] the spinning cabin 210 and the spinning agent storage cabin 220 are separated by a partition, and a spinning agent 221 in the spinning agent storage cabin 220 may be sprayed into the spinning cabin 210; an opening is arranged on the left side of the 3
BL-5633 spinning cabin 210; LU503584
[37] the second electric booster cabin 230 is internally provided with a second electric cylinder 231, a second connecting rod 232 and a second piston 233; the left side of the second electric cylinder 231 1s fixed on the second piston 233 through the second connecting rod 232, and the second piston 233 withstands the spinning agent 221 in the spinning agent storage cabin 220;
[38] the power device 100 and the printing device 200 are connected through a connection component 400; the connection component 400 includes a connection probe 134 and a first spirally connected tooth 135 which are arranged outside the left side of the first electric booster cabin 130, and a connection probe interface 234 and a second spirally connected tooth 235 which are arranged outside the right side of the second electric booster cabin 230; and the first spirally connected tooth 135 and the second spirally connected tooth 235 are matched with each other and are in detachable buckled connection;
[39] the control module 300 is fixed on the power device 100.
[40] In one implementation, 4 - 6 water inlet supplementing ports 211 are evenly arranged in a circumferential wall of the spinning cabin 210 close to the partition, and an opening direction of the water inlet supplementing ports 211 is rightward.
[41] In one implementation, the power material storage cabin 120 includes a power material outlet valve 122, the power material outlet valve 122 is located on the partition between the power material storage cabin 120 and the power reaction cabin 110 and extends into the power reaction cabin 110, and the power material 121 is contained in the power material storage cabin 120; the spinning agent storage cabin 220 includes a spinning nozzle 222; the spinning nozzle 222 is located on the partition between the spinning agent storage cabin 220 and the spinning cabin 210 and extends into the spinning cabin 210, and the spinning agent 221 is contained in the spinning agent storage cabin 220.
[42] In one implementation, the power material outlet valve 122 is a check valve.
[43] In one implementation, the power material 121 is a substance that may react with water to produce gas and/or energy.
[44] In one preferred implementation, the power material 121 is selected from sodium metal particles or sodium metal powder and gel-like liquid formed by kerosene or other nonreactive oil substances. The power material in the power material storage cabin is the gel-like liquid formed by mixing the sodium metal particles or the sodium metal powder with the kerosene or the other nonreactive oil substances, the sodium metal particles or the sodium metal powder are uniformly suspended in an above medium, and the liquid is sprayed into the reaction cabin through the power material outlet valve on a rear part of the power material storage cabin to react with water to generate gas and/or energy, which is used as motion energy of an underwater vehicle.
[45] In one implementation, the spinning agent is selected from carrageenan or alginate fibers or other gel-like liquid that may be solidified when encountering chloride ions.
[46] In one implementation, the control module 300 includes an environment sensor, a depth sensor, a temperature sensor, a controller, a main control board, an energy 4
BL-5633 management board, a radio station component, a positioning module, an attitude sensor LU503584 module, an electronic compass module and a battery; and the environment sensor, the depth sensor, the temperature sensor, the controller, the main control board, the energy management board, the radio station component, the positioning module, the attitude sensor module, the electronic compass module and the battery are all arranged in the control module.
[47] A working principle of the dual-piston spirally separable connection type underwater 3D printer is as follows:
[48] referring to FIGs. 1 - 5, the underwater printer of the present invention has no initial power, and may be carried by systems such as surface ships, submarines, and aircrafts. During use, the underwater printer is launched to a predetermined position, and the environment sensor in the control module 300 is configured to receive a command; the electric cylinder 131 is turned on to push the first connecting rod 132 and then push the first piston 133 to squeeze the power material 121 in the power material storage cabin 120, the check valve 122 between the power reaction cabin 110 and the power material storage cabin 120 is turned on, and the power material 121 is the gel-like liquid formed by mixing the sodium metal particles or the sodium metal powder with the kerosene or other nonreactive oil substances; after opening the water supply valve 111 on the power material reaction cabin, water enters and is mixed with the power material 121 entering from the power material storage cabin 120 to react, release gas and generate a large amount of pressure, at this time, the jet thruster 112 is opened, so that gas-water mixed liquid is sprayed out through the jet thruster 112 and the underwater vehicle is rapidly pushed to move forward, and the above process is repeated to make the underwater vehicle have power for continuing to move forward even if there is no external force. After a reaction in the power reaction cabin 110 generates gas and pressure, the jet thruster 112 is turned off, so that the underwater printer stops moving forward.
[49] The spinning nozzle 222 between the spinning cabin 210 and the spinning agent storage cabin 220 is turned on, the spinning agent 221 is contained in the spinning agent storage cabin 220, when the underwater unmanned vehicle continues to move forward, the second electric cylinder 231 drives the second connecting rod 232 and then drives the second piston 233 to squeeze the spinning agent 221 in the spinning agent storage cabin 220, the spinning agent is sprayed into the spinning cabin 210 through the spinning nozzle 222, water is fed through a left opening and the water inlet supplementing ports 211 of the spinning cabin 210, so that the water enters the spinning cabin 210 and is mixed with the spinning agent 221 entering from the spinning agent storage cabin 220 for solidification, and a three-dimensional solid structure is rapidly constructed.
[50] When the power material 121 in the power material storage cabin 120 or the spinning agent 221 in the spinning agent storage cabin 220 is used up, the connection component 400 is controlled, and the connection between the power device 100 and the printing device 200 is opened by counterspiral rotation of the first spirally connected tooth 135 and the second spirally connected tooth 235; then the power device 100 or the printing device 200 filled with the power material 121 or the spinning agent 221 is used
BL-5633 for corresponding replacement; it can be understood that these replacement assemblies LU503584 may come from a mother underwater ship, so as to achieve continuous underwater printing.
[51] The control module 300 relies on the environment sensor, the depth sensor, the temperature sensor, the controller, the main control board, the energy management board, the radio station component, the positioning module, the attitude sensor module, the electronic compass module and the battery to adjust a state of an underwater vehicle, speeds of forward moving, backward moving, and floating up and down, as well as the transmission function of information.
[52] In summary: the underwater printer can realize underwater movable 3D printing; in the present invention, 3D printing under water is realized, and enables rapid construction of a 3D object at fixed points or in motion; the 3D object is suitable for being constructed in deep water areas, is small in volume and not easy to be detected by radar, and has higher maneuverability. Besides, the power device and the printing device of the present invention may be separated, and are connected in a screw-in connection manner and separated in a screw-out separation manner. Since consumption rates of the spinning material in the spinning material storage cabin and the power material in the power material storage cabin are inconsistent, when one of the two cabins consumes the material first, the printing device and the power device may be separated by rotary disengaging, and a cabin with sufficient materials in a prepared backup power device or printing device is selected underwater for connection again, and then continues to work without interruption. Compared with an original design, the efficiency is higher and maneuverability is higher. Since the printer does not need to emerge from the water for manual replacement, and underwater automatic replacement mode is used, it is more concealed and has a higher intelligence degree. 6
Claims (2)
1. A dual-piston spirally separable connection type underwater 3D printer, comprising a forward power device, a printing device and a control module; the power device comprises a power reaction cabin, a power material storage cabin and a first electric booster cabin in sequence from right to left; the power reaction cabin is provided with a water supply valve; the power reaction cabin and the power material storage cabin are separated by a partition, and a power material in the power material storage cabin may enter the power reaction cabin; at least two jet thrusters are evenly arranged on a circumferential wall of the power reaction cabin, the first electric booster cabin is internally provided with a first electric cylinder, a first connecting rod and a first piston; the right side of the first electric cylinder is fixed on the first piston through the first connecting rod, and the first piston withstands the power material in the power material storage cabin; the printing device comprises a second electric booster cabin, a spinning agent storage cabin and a spinning cabin in sequence from right to left; the spinning cabin and the spinning agent storage cabin are separated by a partition, and a spinning agent in the spinning agent storage cabin may be sprayed into the spinning cabin; an opening is arranged on the left side of the spinning cabin; the second electric booster cabin is internally provided with a second electric cylinder, a second connecting rod and a second piston; the left side of the second electric cylinder is fixed on the second piston through the second connecting rod, and the second piston withstands the spinning agent in the spinning agent storage cabin; the power device and the printing device are connected through a connection component; the connection component comprises a connection probe and a first spirally connected tooth which are arranged outside the left side of the first electric booster cabin, and a connection probe interface and a second spirally connected tooth which are arranged outside the right side of the second electric booster cabin; and the first spirally connected tooth and the second spirally connected tooth are matched with each other and are in detachable buckled connection.
2. The dual-piston spirally separable connection type underwater 3D printer according to claim 1, wherein 4 - 6 water inlet supplementing ports are evenly arranged in a circumferential wall of the spinning cabin close to the partition, and an opening direction of the water inlet supplementing ports is rightward. 7
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU503584A LU503584B1 (en) | 2023-03-07 | 2023-03-07 | Dual-piston spirally separable connection type underwater 3d printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU503584A LU503584B1 (en) | 2023-03-07 | 2023-03-07 | Dual-piston spirally separable connection type underwater 3d printer |
Publications (1)
Publication Number | Publication Date |
---|---|
LU503584B1 true LU503584B1 (en) | 2023-09-13 |
Family
ID=88068186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
LU503584A LU503584B1 (en) | 2023-03-07 | 2023-03-07 | Dual-piston spirally separable connection type underwater 3d printer |
Country Status (1)
Country | Link |
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LU (1) | LU503584B1 (en) |
-
2023
- 2023-03-07 LU LU503584A patent/LU503584B1/en active IP Right Grant
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FG | Patent granted |
Effective date: 20230913 |