GB2552401A

GB2552401A - Electrical plug

Info

Publication number: GB2552401A
Application number: GB1704147.6A
Authority: GB
Inventors: Chen Ying-Hsien; Lee Chih-Min
Original assignee: Lite On Electronics Guangzhou Co Ltd; Lite On Technology Corp
Current assignee: Lite On Electronics Guangzhou Co Ltd; Lite On Technology Corp
Priority date: 2016-07-22
Filing date: 2017-03-15
Publication date: 2018-01-24
Also published as: SG10201701977SA; CN107645089A; GB201704147D0

Abstract

An electrical plug includes a case 10, two conductive pins 20, a movable member 30, an internal cover 40 and an elastic unit 50. The case includes a side wall 11, a bottom wall 12, two inner walls 13 and an opening 14. The two inner walls connect to the bottom wall and form a chute 15. The opening is located between the two inner walls and on the side wall. The two conductive pins connect to the bottom wall. The movable member includes a connecting or dummy earth pin 31, and a movable unit 32 with positioning units 34 and 35 at the ends of a side groove 36. The movable unit passes through the opening into the chute. The cover connects the two inner walls. The elastic unit is located in the chute and has one or more spring plates 52 which latch in units 34 and 35 to lock the pin in the deployed and retracted positions. The cover has a column 41 which is ultrasonically riveted, so the plug does not need a metal screw.

Description

(71) Applicant(s):

Lite-on Electronic (GUangzhou) Limited

No. 25 Guangpu W. Rd, Guangzhou Science City,

Guangzhou Hi-Tech Industrial Zone,

Guang Zhou 510663, China

Lite-on Technology Corporation

22F., No. 392, Ruey Kuang Road, Neihu Dist,

Taipei City 11492, Taiwan (72) Inventor(s):

Ying-Hsien Chen Chih-Min Lee (74) Agent and/or Address for Service:

LOVEN Patents & Trademarks Limited

Wragby Road, Sudbrooke, Lincoln, Lincolnshire,

LN2 2QU, United Kingdom (51) INT CL:

H01R 13/40 (2006.01) H01R 24/30 (2011.01) H01R 103/00 (2006.01) (56) Documents Cited:

GB 2417621 A CN 201478610 U

CN 104682065 A US 20120122327 A1 (58) Field of Search:

INT CL H01R

Other: Online: WPI, EPODOC (54) Title of the Invention: Electrical plug

Abstract Title: Electrical plug with sliding pin (57) An electrical plug includes a case 10, two conductive pins 20, a movable member 30, an internal cover 40 and an elastic unit 50. The case includes a side wall 11, a bottom wall 12, two inner walls 13 and an opening 14. The two inner walls connect to the bottom wall and form a chute 15. The opening is located between the two inner walls and on the side wall. The two conductive pins connect to the bottom wall. The movable member includes a connecting or dummy earth pin 31, and a movable unit 32 with positioning units 34 and 35 at the ends of a side groove 36. The movable unit passes through the opening into the chute. The cover connects the two inner walls. The elastic unit is located in the chute and has one or more spring plates 52 which latch in units 34 and 35 to lock the pin in the deployed and retracted positions. The cover has a column 41 which is ultrasonically riveted, so the plug does not need a metal screw.

FIG. 1

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FIG. 1

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FIG.3

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FIG. 4

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FIG. 5

FIG.6

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FIG.8

6/6 la

FIG. 9

ELECTRICAL PLUG

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an electrical plug; more particularly, the present invention relates to an electrical plug without a screw.

2. Description of the Related Art

Currently, the type G electrical plug defined by

International Electrotechnical Commission is mainly used in United Kingdom, Ireland, Malaysia, Singapore and Hong Kong, and the electrical plug has a protective cover, a grounding pin and two live wires. The protective cover covers the grounding pin and the two live wires, and the protective cover is locked by a metal screw. However, using a metal screw to lock the protective cover increases the material cost and assembly cost of manpower and time will also be increased. Moreover, regarding the design of the circuit and structure of the electrical plug, designers must consider the safe distance between the metal screw and the two live wires to comply with safety regulations.

Therefore, there is a need to provide an electrical plug which has a moveable member and does not have a screw.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide an electrical plug without a screw.

To achieve the abovementioned object, the electrical plug of the present invention includes a case, two conductive pins, a movable member, a cover and an elastic unit. The case includes a side wall, a bottom wall, two inner walls and an opening. The bottom wall is connected to the side wall. The two inner walls are connected to the bottom wall and form a chute. The opening is located between the two inner walls and located on the side wall. The two conductive pins are connected to the bottom wall. The movable member includes a connecting pin, a movable unit, a first positioning unit and a side groove. The movable unit is connected to the connecting pin, the movable unit passes through the opening, and the movable unit is located in the chute. The side groove is located on the movable unit. The first positioning unit is located at one end of the side groove. The cover is connected to the two inner walls. The elastic unit is located in the chute. The elastic part includes a spring plate located in the side groove.

According to one embodiment of the present invention, the movable member further includes at least one second positioning unit, and the second positioning unit is located at the other end of the at least one side groove.

According to one embodiment of the present invention, the inner wall further includes at least one fastening groove, and the at least one fastening groove links to the chute, and the elastic unit further includes at least one fastening part, and the at least one fastening part is located in the at least one fastening groove.

According to one embodiment of the present invention, the movable unit further includes a positioning groove, and the positioning groove faces the cover, and the cover further includes a positioning column, and the positioning column passes through the positioning groove.

According to one embodiment of the present invention, the elastic unit further includes a positioning hole located above the positioning groove, and the positioning column passes through the positioning hole.

According to one embodiment of the present invention, the positioning groove further includes a first positioning end and a second positioning end; the first positioning end is one end of the positioning groove and away from the connecting pin, and the second positioning end is the other end of the positioning groove and close to the connecting pin.

According to one embodiment of the present invention, when the positioning column touches the first positioning end, the at least one spring plate and the at least one first positioning unit are fastened to each other; when the positioning column touches the second positioning end, the at least one spring plate and the at least one second positioning unit are fastened to each other.

According to one embodiment of the present invention, the case further includes a notch, and the notch is connected to the opening and located on the bottom wall; when the at least one spring plate and the at least one first positioning unit are fastened to each other, the connecting pin is located in the notch.

According to one embodiment of the present invention, the inner wall further includes a groove, and the groove faces the at least one spring plate.

According to one embodiment of the present invention, the cover and the two inner walls are connected via an ultrasonic riveting method.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other objects and advantages of the present invention will become apparent from the following description of the accompanying drawings, which disclose several embodiments of the present invention. It is to be understood that the drawings are to be used for purposes of illustration only, and not as a definition of the invention.

In the drawings, wherein similar reference numerals denote similar elements throughout the several views:

FIG. 1 illustrates an exploded view of the electrical plug in the first embodiment of the present invention.

FIG. 2 illustrates a schematic drawing of the elastic unit which is put in the chute in the first embodiment of the present invention.

FIG. 3 illustrates a schematic drawing of the movable member which is put in the chute in the first embodiment of the present invention.

FIG. 4 illustrates a schematic drawing of the cover which is combined with the case in the first embodiment of the present invention.

FIG. 5 illustrates a sectional view along the section line AA shown in FIG. 4 of the electrical plug when the movable unit does not enter the notch in the first embodiment of the present invention.

FIG. 6 illustrates a schematic drawing of the electrical plug when the movable unit does not enter the notch in the first embodiment of the present invention.

FIG. 7 illustrates a sectional view along the section line AA shown in FIG. 4 of the electrical plug when the movable unit enters the notch in the first embodiment of the present invention.

FIG. 8 illustrates a schematic drawing of the electrical plug when the movable unit enters the notch in the first embodiment of the present invention.

FIG. 9 illustrates an exploded view of the electrical plug in the second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to FIG. 1 to FIG. 8 regarding the electrical plug in the first embodiment of the present invention. FIG. 1 illustrates an exploded view of the electrical plug in the first embodiment of the present invention. FIG. 2 illustrates a schematic drawing of the elastic unit which is put in the chute in the first embodiment of the present invention. FIG. 3 illustrates a schematic drawing of the movable member which is put in the chute in the first embodiment of the present invention. FIG. 4 illustrates a schematic drawing of the cover which is combined with the case in the first embodiment of the present invention. FIG. 5 illustrates a sectional view along the section line AA shown in FIG. 4 of the electrical plug when the movable unit does not enter the notch in the first embodiment of the present invention. FIG. 6 illustrates a schematic drawing of the electrical plug when the movable unit does not enter the notch in the first embodiment of the present invention. FIG. 7 illustrates a sectional view along the section line AA shown in FIG. 4 of the electrical plug when the movable unit enters the notch in the first embodiment of the present invention. FIG. 8 illustrates a schematic drawing of the electrical plug when the movable unit enters the notch in the first embodiment of the present invention.

In the first embodiment of the present invention, as shown in FIG. 1 to FIG. 4, and in FIG. 6, the electrical plug 1 of the present invention is a type G electrical plug defined by International Electrotechnical Commission. The electrical plug 1 is used for connecting to a type G outlet to obtain power. The electrical plug 1 includes an upper case (not shown), a case 10, two conductive pins 20, a movable member 30, a cover 40 and an elastic unit 50.

In the first embodiment of the present invention, the upper case is connected to the case 10, and the case 10 is the bottom case of the electrical plug 1. The case 10 includes a side wall

11, a bottom wall 12, two inner walls 13, an opening 14 and a notch 16. The side wall 11 surrounds and connects to the bottom wall 12. The side wall 11 and the bottom wall 12 form a capsule-shaped containing space for containing the other units of the electrical plug 1. The two inner walls 13 are connected to the bottom wall 12 and located in the containing space formed by the side wall 11 and the bottom wall 12. A chute 15 is formed between the two inner walls 13; in this embodiment, the chute 15 is shaped as a cuboid space, but the present invention is not limited to that design. The chute 15 is used for containing the movable member 30 and the elastic unit 50, and used for allowing the movable member 30 to move along the long axis of the chute 15. Each of the inner walls 13 includes a groove 131 and a fastening groove 17. Each of the grooves 131 faces the chute 15. The fastening grooves 17 link to the chute

15, and the fastening grooves 17 are located next to the opening 14. The two fastening grooves 17 are used for fastening to the elastic unit 50. The opening 14 is located between the two inner walls 13 and on the side wall 12. The opening 14 links to the chute 15 for allowing the movable member 30 to pass through the opening 14 from the outside and enters the chute 15. The notch 16 is located on the bottom wall and connected to the opening 14. The notch 16 is used for containing the movable member 30.

In the first embodiment of the present invention, as shown in FIG. 1 and in FIG. 5 to FIG. 8, the two conductive pins 20 are connected to the bottom wall 12, and the two conductive pins 20 are connected to a circuit board disposed in an accommodation formed by the upper case and the case 10 for connecting to an external power outlet to obtain power from the power outlet. The movable member 30 is a telescopic connecting pin which can be extracted from the case 10 or retracted back into the case 10. The movable member 30 includes a connecting pin 31, a movable unit 32, two first positioning units 34, two second positioning units 35 and two side grooves 36. In practice, the connecting pin 31 is a grounding pin made of conductive material for conducting excess electricity into the ground, or the connecting pin 31 can also be made of a non-conductive material. The movable unit 32 is connected to the connecting pin 31. The movable unit 32 passes through the opening 14 to be movably located in the chute 15. The movable unit 32 includes a positioning groove 33. The positioning groove 33 is a long chute; the positioning groove 33 faces the cover 40, and the positioning groove 33 is used for limiting the moving position of the movable unit 32. The positioning groove 33 includes a first positioning end 331 and a second positioning end 332. The first positioning end 331 is one end of the positioning groove 33 and away from the connecting pin 31. The second positioning end 332 is the other end of the positioning groove 33 and close to the connecting pin 31. The two side grooves 36 are located on the movable unit 32 and respectively located next to the two sides of the positioning groove 33. Each of the side grooves 36 is a long chute. The two first positioning units 34 are respectively located at the first ends of the long chutes of the two side grooves 36. Each first positioning unit 34 is an indentation for fastening the elastic unit 50 and limiting the moving position of the movable unit 32. The two second positioning units 35 are respectively located at the second ends of the long chutes of the two side grooves 36. Each second positioning unit 35 is an indentation for fastening the elastic unit 50 and limiting the moving position of the movable unit 32.

In the first embodiment of the present invention, as shown in FIG. 1, FIG. 4, FIG. 5 and FIG. 7, the cover 40 is a U-shaped cover which is connected to the two inner walls 13 to cover all the units in the chute 15. The cover 40 and the two inner walls 13 of the present invention are connected via an ultrasonic riveting method such that the appearance of the cover 40 and the two inner walls 13 can be integrated, and the cover 40 and the two inner walls 13 can be combined without using a traditional screw or nut. The cover 40 includes a positioning column 41. The positioning column 41 passes through the positioning groove 33 and the elastic unit 50. When the movable unit 32 moves in the chute 15, the positioning column will be located at the first positioning end 331 or the second positioning end 332 of the positioning groove 33 according to the movement of the movable unit 32.

In the first embodiment of the present invention, the elastic unit 50 is a U-shaped long board located in the chute 15. The U-shaped long board of the elastic unit 50 covers the long column-shaped movable unit 32. The elastic unit 50 includes two fastening parts 51, two spring plates 52 and a positioning hole 53. The two fastening parts 51 are respectively located in the two fastening grooves 17 and fastened to the two fastening grooves 17. Via the fastening between the two fastening parts 51 and the two fastening grooves 17, the elastic unit 50 is stably located in the chute 15. The two spring plates 52 respectively extend towards the inside of the elastic unit 50 and are respectively located in the two side grooves 36. When the movable member 30 moves in the chute 15 and the positioning column 41 touches the first positioning end 331, the spring plates 52 will fasten to the first positioning units 34; when the movable member 30 moves in the chute 15 and the positioning column 41 touches the second positioning end 332, the spring plates 52 will fasten to the second positioning units 35. The positioning hole 53 is located above the positioning groove 33. The positioning column 41 passes through the positioning hole 53 and the positioning groove 33 in sequence to keep the position of the elastic unit 50 stable.

Via the abovementioned structure, the user can push the io connecting pin 31 to cause the movable unit 32 to move in the chute 15 and along the long axis of the chute 15; when the positioning column 41 touches the first positioning end 331, part of the movable unit 32 will protrude out from the side wall

11 of the case 10. At this moment, the connecting pin 31 and the two conductive pins 20 form a British standard plug for connecting to a corresponding power outlet. Furthermore, when the user pushes the connecting pin 31 or the movable unit 32 such that the positioning column 41 touches the second positioning end 332, the movable unit 32 will be completely located in the chute 15. In other words, the movable unit 32 will not protrude out from the case 11, and the connecting pin 31 will be located in the notch 16; the whole volume of the electrical plug 1 can thus be reduced for convenient storage of the electrical plug.

When an assembly worker needs to assemble the electrical plug 1 of the present invention, as shown in FIG. 1 and FIG. 2, the assembly worker must first put the elastic unit 50 into the chute 15 and respectively fasten the two fastening parts 51 to the two fastening grooves 17; via the fastening between the two fastening parts 51 and the two fastening grooves 17, the elastic unit 50 can be located in the chute 15 stably. When the two fastening parts 51 are respectively fastened to the two fastening grooves 17 and cause the elastic unit 50 to be located in the chute 15 stably, the positions of the two spring plates 52 will be respectively located next to the grooves 131 of the two π

inner walls 13, and each of the grooves 131 will be respectively facing the two spring plates 52. Then, as shown in FIG. 1, FIG. 3 and FIG. 5, the assembly worker must plug the movable unit 32 of the movable member 30 into the chute 15 from the opening 14 such that the movable unit 32 is located under the U-shaped long board of the elastic unit 50. When the movable unit 32 is plugged into the chute 15 from the opening 14, the movable unit 32 will first touch the two spring plates 52, which extend towards the inside of the elastic unit 50; at this moment, if the assembly worker gradually pushes the movable unit 32 into the chute 15, the movable unit 32 will push the two spring plates 52 which extend towards the inside of the elastic unit 50 to the inner walls 13 of the two sides (i.e., the extending direction of the two spring plates 52 will be changed from towards the inside to towards the outside) such that the two spring plates 52 will be respectively facing the two grooves 131 and the spring plates 52 will not block the movement of the movable unit 32. When the movable unit 32 is pushed deeply into the chute 15, the two side grooves 36 will respectively move to be next to the two spring plates 52; meanwhile, the two spring plates 52 which face the two grooves 131 will be restored to face the inside of the elastic unit 50 via their own elasticity and respectively located in the two side grooves 36. Because the first positioning units 34 and the second positioning units 35 are respectively located at the two ends of each of the side grooves 36, the spring plates 52 will not be removed from the side grooves 36; whereby, the movable unit of the movable member 30 can be combined with the elastic unit 50 stably. Then, as shown in FIG. 1 and FIG. 4, the assembly worker can use the U-shaped cover of the cover 40 to cover the two inner walls 13 such that the cover 40 covers the elastic unit 50 and the movable unit 32 in the chute 15 to protect those units. Meanwhile, the assembly worker must also pass the positioning column 41 through the positioning groove and the positioning hole 53 such that the position of the elastic unit 50 will be stable, and the positioning column 41 can work with the positioning groove 33 to provide the effect of positioning of the movable unit 32. Finally, the assembly worker can use the ultrasonic riveting method to connect the cover 40 and the two inner walls 13 such that the appearance of the cover 40 and the two inner walls 13 can be integrated. In the manner described above, the assembly process of the electrical plug 1 can be completed without the use of a screw or nut in the assembly processing; thus, the effects of saving the material cost and the screw assembly time can be achieved.

When the user needs to plug the electrical plug 1 of the present invention into an external power outlet, as shown in FIG. 1, FIG. 5 and FIG. 6, the user must apply a force to the movable member 30 to cause the movable unit 32 of the movable member 30 to move outwardly along the long axis of the chute 15 (along the moving direction B); therefore, the positioning groove 33 on the movable unit 32 will move relative to the positioning column 41 until the positioning column 41 touches the first positioning end 331 of the positioning groove 33. When the movable unit 32 moves to the point at which the positioning column 41 almost touches the first positioning end 331, the two spring plates 52 will respectively touch the two first positioning units 34; since the two spring plates 52 have elasticity, then when the two spring plates 52 touch the two first positioning units 34, the spring plates 52 will be pushed by the two first positioning units 34 to move slightly to the deeper position of the elastic unit 50. When the movable unit 32 moves to the point at which the positioning column 41 touches the first positioning end 331, the two spring plates 52 will respectively move to fasten to the indentations of the two first positioning units 34 to achieve the function of fastening and provide a great operation sensation and the slight buckling sound to the user; therefore, via the operation sensation and the slight buckling sound, the user can know that the movable unit 32 has already moved outwardly to the position where the two conductive pins 20 and the connecting pin 31 can be plugged into the power outlet. Therefore, at this moment, the user can stop pushing the movable unit 32 to the outside and plug the two conductive pins 20 and the connecting pin 31 into the power outlet.

When the user does not need to use the electrical plug 1 of the present invention, as shown in FIG. 1, FIG. 7 and FIG. 8, the user can apply a force to the movable member 30 to cause the movable unit 32 of the movable member 30 to move inwardly along the long axis of the chute 15 (along the moving direction C); as a result, the positioning groove 33 on the movable unit 32 will move relative to the positioning column 41 until the positioning column 41 touches the second positioning end 332 of the positioning groove 33. When the movable unit 32 moves to the point at which the positioning column 41 almost touches the second positioning end 332, the two spring plates 52 will respectively touch the two second positioning units 35; since the two spring plates 52 have elasticity, then when the two spring plates 52 touch the two second positioning units 35, the spring plates 52 will be pushed by the two second positioning units 35 to move slightly. When the movable unit 32 moves to the point at which the positioning column 41 touches the second positioning end 332, the two spring plates 52 will respectively move to fasten to the indentations of the two second positioning units 35 to achieve the function of fastening and provide the great operation sensation and the slight buckling sound to the user; therefore, via the operation sensation and the slight buckling sound, the user can know that the movable unit 32 has already moved inwardly to the deepest position and that the connecting pin 31 has already moved into the notch 16. As a result, the volume of the electrical plug 1 will be reduced for convenient storage or transportation.

Please refer to FIG. 9 regarding the electrical plug in the second embodiment of the present invention. FIG. 9 illustrates an exploded view of the electrical plug in the second embodiment of the present invention.

As shown in FIG. 9, the difference between the second embodiment and the first embodiment is that, in the electrical plug la of the second embodiment, only one of the inner walls 13 of the case 10a has the fastening groove 17 and the groove 131; the other inner wall 13a does not have the fastening groove 17 or the groove 131. The amounts of the first positioning unit 34, the second positioning unit 35 and the side groove 36 of the movable member 30a are only one. The amounts of the fastening part 51 and the spring plate 52 of the elastic unit 50a are also only one. When the movable member 30a and the elastic unit 50a are installed into the chute 15, the fastening part 51 of the elastic unit 50a will be fastened to the fastening groove 17 of the inner wall 13a, and the spring plate 52 will also enter the side groove 36 to work with the movement of the movable member 30a to fasten to the first positioning unit 34 and the second positioning unit 35.

Therefore, the electrical plug la of the second embodiment has the same telescopic grounding pin design as the electrical plug 1 of the first embodiment.

Via the design of the electrical plug 1 of the present invention, the assembly process of the electrical plug 1 can be completed without the use of a screw, such that the effects of saving the material cost and screw assembly time can be achieved; furthermore, when designing the structure of the electrical plug 1, designers need not consider the safe distance between a metal screw and two live wires. Moreover, the electrical plug 1 of the present invention has the design of a telescopic grounding pin; when the user does not need to use the electrical plug 1, the user can reduce the volume of the electrical plug 1 to achieve the effect of reducing the occupied space for convenient storage or transportation.

In summary, regardless of the purposes, means and effectiveness, this invention is quite different from the known technology and should merit the issuing of a new patent. However, it is noted that many of the above-mentioned embodiments are only for illustrative purposes; the claims of the invention should depend on the claims and not be limited to the embodiments.

Claims

WHAT IS CLAIMED IS:

1. An electrical plug, comprising:

a case, comprising:

a side wall;

a bottom wall, connected to the side wall;

two inner walls, connected to the bottom wall, the two inner walls forming a chute; and an opening, located between the two inner walls and on the side wall;

two conductive pins, connected to the bottom wall;

a movable member, comprising: a connecting pin;

a movable unit, connected to the connecting pin, wherein the movable unit passes through the opening and is located in the chute;

at least one side groove, located on the movable unit; and at least one first positioning unit, located at one end of the at least one side groove;

a cover, connected to the two inner walls; and an elastic unit, located in the chute, wherein the elastic unit comprises at least one spring plate, and the at least one spring plate is located in the at least one side groove.
2. The electrical plug as claimed in Claim 1, wherein the movable member further comprises at least one second positioning unit, and the at least one second positioning unit is located at the other end of the at least one side groove.
3. The electrical plug as claimed in Claim 1, wherein each of the inner walls comprises at least one fastening groove, the at least one fastening groove links to the chute, and the elastic unit further comprises at least one fastening part, the at least one fastening part is located in the at least one fastening groove.
4. The electrical plug as claimed in Claim 2, wherein the movable unit further comprises a positioning groove, and the positioning groove faces the cover, and the cover further comprises a positioning column, and the positioning column passes through the positioning groove.
5. The electrical plug as claimed in Claim 4, wherein the elastic unit further comprises a positioning hole located above the positioning groove, and the positioning column passes through the positioning hole.
6. The electrical plug as claimed in Claim 4, wherein the positioning groove further comprises a first positioning end and a second positioning end, the first positioning end is one end of the positioning groove and away from the connecting pin, and the second positioning end is the other end of the positioning groove and close to the connecting pin.
7. The electrical plug as claimed in Claim 6, wherein when the positioning column touches the first positioning end, the at least one spring plate and the at least one first positioning unit

5 are fastened to each other, when the positioning column touches the second positioning end, the at least one spring plate and the at least one second positioning unit are fastened to each other.

10
8. The electrical plug as claimed in Claim 1, wherein the case further comprises a notch, the notch is connected to the opening and located on the bottom wall, when the at least one spring plate and the at least one first positioning unit are fastened to each other, the connecting pin is located in the

15 notch.
9. The electrical plug as claimed in Claim 1, wherein the inner wall further comprises a groove, and the groove faces the at least one spring plate.
10. The electrical plug as claimed in Claim 1, wherein the cover and the two inner walls are connected via an ultrasonic riveting method.

Intellectual

Property

Office

Application No: GB 1704147.6