Classifications

• • G—PHYSICS
  • G04—HOROLOGY
  • G04F—TIME-INTERVAL MEASURING
  • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
  • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
  • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
• • G—PHYSICS
  • G04—HOROLOGY
  • G04F—TIME-INTERVAL MEASURING
  • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
  • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
  • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
  • G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
  • G04B3/001—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously by push button
• • G—PHYSICS
  • G04—HOROLOGY
  • G04F—TIME-INTERVAL MEASURING
  • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
  • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
  • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
  • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
  • G04F7/0857—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with single push-button or actuation member for start-stop and reset

Definitions

• timepiece comprising such a device
• the present invention relates to a display device for a timepiece which comprises a counter mobile and a manual control mechanism arranged to allow cyclically to start, stop, and reset the counter mobile, the display device comprising an indicator member and means for enabling the indicator member to be brought into a reading position following the stop of the counter mobile, the reading position being determined by the position of the counter mobile.
• the present invention relates to a timepiece comprising a display device according to the first aspect of the invention.
• Timepieces are known which include a display device conforming to the definition given above.
• Patent document EP 1 024 416 A2 in particular describes a display device intended to equip a chronograph.
• This chronograph also conventionally includes a control device and a chronograph train.
• the chronograph train itself has a second counter mobile arranged to be driven at the speed of one revolution / minute and a fifth of a second counter mobile arranged to be driven at the speed of one revolution in ten seconds .
• the chronograph hand is mounted on the axis of the second counter mobile.
• the fifth of a second counter mobile on the other hand, is associated with a retrograde hand intended to indicate the fifths of a second on a graduation in an arc of a circle.
• the display device described in the aforementioned prior document includes a snail which is mounted on the axis of the fifth of a second counter mobile so as to rotate with the latter, a dedicated pusher which can be used only when the chronograph is stopped, and a main scale which is equipped with a tenon-feeler and a toothed sector.
• the toothed sector is arranged to be engaged with a cog connected to the retrograde needle so as to allow the main rocker to control the position of this needle.
• a return spring is also arranged to exert, on the main rocker, a force tending to return the post-feeler against the periphery of the snail to read the fraction of a second timed.
• the main rocker is locked in the raised position, so that the tenon-feeler is kept away from the snail, and the retrograde needle occupies a rest position which is located above a neutral zone (off scale) of the dial.
• the pusher is actuated, the main rocker is released, so that it pivots and the tenon-feeler comes to bear against the periphery of the snail.
• the pivoting of the rocker then has the effect of bringing the retrograde needle above a position of the graduation which corresponds to the fifth of a second to be indicated.
• the button is then released, the main rocker returns to its raised position and the retrograde hand returns to its rest position above the neutral zone of the dial.
• An object of the present invention is to remedy the drawbacks of the prior art which have just been explained.
• the present invention achieves this and other objects by providing a display device according to the appended claim 1, as well as by providing a timepiece according to the appended claim 15.
• the display device comprises means for bringing the indicating member to a first predefined position associated with the value “zero” when the counter mobile is reset to zero, and for bringing the indicating member in a second predefined position, different from the first predefined position, when the counter mobile is started.
• an advantage of the features of the invention listed above is that the indicator member moves from one fixed position to another when the counter mobile is started. This move confirms to the user that the counter mobile has actually started.
• a user who knows his timepiece knows that, when the indicating member is in the second predefined position, it indicates that the counter mobile is in the process of turning.
• the running of the hand is generally sufficient to indicate that the chronograph train works.
• the timepiece of the prior art is not equipped with a large chronograph hand, the user may doubt that the mechanism is working. It will be understood that the present invention overcomes this problem in particular.
• FIG. 1 is a plan view on the dial side of a chronograph watch equipped with a display device in accordance with a particular embodiment of the invention
• FIGS. 2A, 2B and 2C are schematic views of the second fraction indicator of a display device according to a first particular embodiment of the invention, the three figures respectively showing the fraction indicator of second after resetting to zero, after starting, and after stopping the chronograph;
• Figure 3 is a partial schematic view of a display device according to a variant of the first embodiment illustrated in Figures 2A, 2B and 2C, the variant of the display device comprising two snails arranged to control two retrograde hands to indicate first and second fractions of a second respectively, and the display device being shown following the resetting of the chronograph;
• FIGS. 4A, 4B and 4C are schematic views of the fraction of a second indicator of a display device according to a second particular embodiment of the invention, the three figures respectively showing the device following delivery at zero, after starting, and after stopping the chronograph;
• FIGS. 5A, 5B and 5C are schematic views of the fractional second indicator of a display device according to a third particular embodiment of the invention, the three figures respectively showing the device following delivery at zero, after starting, and after stopping the chronograph;
• FIG. 5D is a schematic plan view showing the heart and finger of the fractional second indicator of Figures 5A, 5B and 5C.
• DETAILED DESCRIPTION OF EMBODIMENTS Three exemplary embodiments of the invention are set out in the description which follows. These three embodiments are intended to be integrated into chronograph mechanisms. It will however be understood that the display device of the invention can also be fitted to other types of timepieces. Among the latter, there may be mentioned in particular the timepieces with countdown and those having a regatta mode.
• Figure 1 is a plan view on the dial side of a chronograph watch which is equipped with a display device according to a particular embodiment of the invention.
• the chronograph watch 1 firstly comprises a watch case 3 which is provided with two pairs of horns 5 intended to serve as fasteners for each of the two strands of a bracelet (not shown). It can be seen that the case also carries a crown for winding and setting the time 23, as well as a pusher 25, which are both arranged at 3 o'clock on the middle. In a manner known per se, the pusher 25 is arranged concentrically with the crown 23. The start, stop and reset of the chronograph can be controlled by actuating the pusher 25.
• the display device of the invention comprises two indicator members constituted by retrograde hands. It will be understood, however, that the indicator members are not necessarily produced in the form of needles.
• the first retrograde hand 15 is provided to cooperate with a first scale in an arc 19 to indicate the tenths of a second contained in the fractional part of the time interval measured by the chronograph
• the second retrograde hand 17 is provided to cooperate with a second scale in an arc 21 to indicate the hundredths of a second contained in the rest of the fractional part.
• the 19 scale unlike the 21 scale, goes counterclockwise.
• the two scales in an arc 19 and 21 each have ten intervals of equal widths separated from each other by nine graduations numbered from 1 to 9.
• each scale 19, 21 also has a terminal graduation at each of its ends.
• the terminal graduation which is placed at the start of a scale (before the "1") is associated with the indication “0” or “reset to zero", while the terminal graduation which is placed at the end of a scale (after “9”) is associated with the indication “start” or “start”.
• the chronograph train (not shown) of the chronograph watch illustrated in FIG. 1 differs from the workings of most of the known chronograph mechanisms in that it is arranged to drive a counter of tenths of a second and a counter of hundredths second.
• the seconds wheel of the chronograph train (not shown) is arranged to mesh with the pinion of a first intermediate mobile, and the wheel of this intermediate mobile is arranged to mesh with the pinion of a counter mobile. tenths of a second.
• the wheel of the tenth of a second counter mobile is arranged to mesh with the pinion of a second intermediate mobile, and the wheel of this second intermediate mobile is arranged to mesh with the pinion of a mobile of hundredths counter. second.
• the gear ratios of the part of the chronograph train which has just been described are chosen so that, when the chronograph seconds wheel rotates at the speed of one revolution per minute, the counter counter mobile tenths of a second rotates at the speed of one revolution per second, and the hundredths of a second counter mobile rotates at the speed of ten revolutions per second.
• the teeth of the chronograph seconds wheel can have 80 teeth
• the pinion and the wheel of the first intermediate mobile can have 10 and 75 teeth respectively
• the pinion and the wheel of the tenths of a second counter mobile. can have 10 and 60 teeth respectively
• the pinion and the wheel of the second intermediate mobile can have 20 and 40 teeth respectively
• the pinion of the hundredths of a second counter can have 12 teeth.
• FIGS. 2A, 2B and 2C are schematic views of the fractional second indicator of a display device according to a first particular embodiment of the invention. These three figures respectively show the fractional seconds indicator in its configuration, following reset, following start-up, and following stop of the chronograph.
• Each of the figures shows a pinion 123, a retrograde needle 1 15 rigidly mounted on the axis of the pinion, a series of graduations arranged along a circular arc so as to form a scale 1 19, a snail 125 mounted on the axis of a second fraction counter mobile (not shown), so as to rotate integrally with the latter, a rake 127 provided with a toothed sector 129, and a feeler 131 rigidly mounted on the rake.
• the aforementioned figures also show a column wheel 135 comprising a ratchet wheel provided with eighteen teeth 137, and six columns 139 erected on the board of the ratchet wheel.
• the column wheel 135 is provided in particular to allow the fraction indicator of the display device to be controlled.
• the column wheel 135 is also part of the manual control mechanism arranged to allow the cyclic start, stop, and reset all of the chronograph.
• the manually operated mechanism of the chronograph also comprises a pusher (referenced 25 in FIG. 1) which is arranged to allow the column wheel to be incremented step by step. Each time the column wheel 135 is incremented by one step, it rotates the angular value of a ratchet tooth (i.e. 20 °) clockwise (as shown in the figures ).
• Figures 2A, 2B and 2C illustrate the column wheel in three different angular positions.
• the column wheel 135 if it is in the configuration shown in FIG. 2A and if it is incremented by one step, it pivots clockwise by the angular value of a ratchet tooth.
• the column wheel is then found in the configuration shown in Figure 2B. If we now increment it by one more step, it will still rotate to find itself this time in the configuration shown in Figure 2C. Finally, if it is incremented a third time, it still pivots by the angular value of a ratchet tooth to find itself again in the configuration shown in FIG. 2A.
• the column wheel 135 regains its initial configuration when it is increased by three steps.
• the column wheel 135 is a three-stroke column wheel.
• the column wheel could be two-stroke.
• the rake 127 is pivotally mounted around an axis 133 and that it is provided with a spout 141 which is biased towards the columns of the wheel with columns 135 by a spring 143.
• the spout 141 is pressed against a column of the column wheel, so that it cannot be lowered.
• the rake is in a standby position in which the feeler 131 is kept away from the snail 125 and the toothed sector 129 is kept disengaged from the pinion 123.
• the column wheel pivots by 20 °, so that the spout 141 of the rake 127 is forced to slide against the external face of the column 139.
• FIG. 2B we can see that, although the spout 141 has slid against the column 139 by the angular value of a ratchet tooth, it is still in abutment against this column. The rake 127 is therefore still in the standby position, despite the start of the chronograph.
• the column wheel pivots again by 20 °, so that this time the spout 141 falls into the space between two columns.
• the rake 127 is then free to rotate clockwise. Referring now to FIG. 2C, it can be seen that, after the chronograph has stopped, the rake 127 is in its reading position in which the feeler 131 presses against the periphery of the snail 125, while the toothed sector 129 meshes with the pinion 123. It will be understood that, when the rake 127 is in the reading position, the angular position of the retrograde needle 1 15 is determined by that of the snail 125.
• the column wheel 135 pivots another 20 °, so that the spout 141 is lifted by a new column 139 of the column wheel, which causes the rake to pivot 127 counterclockwise.
• the fractional seconds indicator thus returns to the configuration illustrated in FIG. 2A.
• the fraction of a second indicator of the display device also comprises means for bringing the retrograde hand to a first predefined position when the chronograph is reset. to zero, and to bring the retrograde hand to a second predefined position, different from the first position, when the chronograph is started.
• a rack 145 which is arranged to pivot around its axis 147 and to permanently mesh with the pinion 123, two stops 149a and 149b delimiting a sector inside which the rack 145 is free to pivot, a control lever 151 arranged to pivot around its axis 153 and having a spout 155.
• a spring 157 arranged to return the spout 155 towards the columns 139 of the wheel with columns 135, and a leaf spring 159 rigidly fixed by one of its ends to the pivot axis 153 of the control lever 151 and by its other end to the pivot axis 147 of the rack 145.
• the distance which separates the pivot axis 153 from the control lever from the pivot axis 147 of the rack is less than the non-deformed length of the leaf spring 159.
• the leaf spring undergoes constraints which prevent it from adopting an undistorted configuration (or in other words: straight).
• the leaf spring 159 adopts a buckled shape (or in other words, bent by deformation in a direction perpendicular to the plane containing the two pivot axes 153 and 147).
• stable configuration is meant a configuration which is associated with a shape to which the leaf spring always returns if it is removed by a request of sufficiently low amplitude.
• the flare due to the buckling of the leaf spring 159 can be oriented in one direction or the other. It will therefore be understood that the leaf spring 159 can thus occupy one or the other of two stable configurations which are symmetrical.
• one end of the leaf spring 159 is rigidly fixed to the pivot axis 153 of the control lever 151, while its other end is fixed in the same way to the pivot axis 147 of rack 145.
• the leaf -spring recalls the rack 145 clockwise and recalls the control lever 151 counterclockwise (as illustrated in Figures 2A and 2C).
• the leaf spring 159 recalls the rack 145 counterclockwise and recalls the control lever 151 in clockwise (as shown in Figure 2B).
• the system constituted by the leaf spring 159, the rack 145 and the control lever 151 is a bistable system, one of the two stable configurations of the system being represented in FIGS. 2A and 2C and the other stable system configuration being shown in Figure 2B. Under these conditions, when the system occupies one of its two stable configurations and that the control lever 151 is pivoted, the entire bistable system is forced to switch and switch to the other configuration.
• the means for bringing the retrograde hand to a first predefined position when the chronograph is reset to zero, and for bringing the retrograde hand to a second predefined position, different from the first position, when the chronograph is started, operate as follows.
• the control lever 151 is arranged to be controlled by the column wheel 135 so as to pivot in one direction or the other between a first position in which the spout 155 is lifted by one of the columns 139 and a second position in which the spout 155 is lowered in the space between two columns.
• the bistable system constituted by the control lever, the leaf spring 159 and the rack 145 occupies a first of these two stable configurations.
• the rack is turned fully clockwise, so that it bears against the stop 149b.
• the retrograde needle 1 15 is, in turn, turned fully counterclockwise, so that it is opposite the terminal graduation associated with the indication “zero” on the scale 1 19.
• the column wheel pivots by 20 °, so that the spout 155 of the control lever falls into the space between two columns 139, the lever 151 thus passing into its second position.
• FIG. 2B it can be seen that the bistable system constituted by the control lever, the leaf spring 159 and the rack 145, has passed from one to the other of these two stable configurations.
• the rack is turned fully counterclockwise, so that it bears against the stop 149a.
• the retrograde hand 115 it is turned fully clockwise, so that it is opposite the terminal graduation associated with the indication “start” (in other words: “departure”) of scale 1 19.
• the column wheel pivots another 20 °, so that the spout 155 is again lifted by a columns 139, and that the control lever 151 returns to its first position.
• FIG. 2C it can be seen that, after the chronograph has stopped, the bistable system constituted by the control lever, the leaf spring 159 and the rack 145, has not resumed its first configuration stable, but on the contrary is in an intermediate position which is unstable. Indeed, as we have seen, following the stop of the chronograph, the toothed sector 129 of the rake 127 meshes with the pinion 123, so that the angular position of the retrograde needle 1 15 is determined by that of the snail 125. Indeed, the force of the leaf spring 159 is chosen to be less than that of the return spring 143. Under these conditions, following stopping the chronograph, it is the pinion 123 which controls the position of the rack 145 and not the reverse.
• FIG. 3 is a partial schematic view of a display device according to a variant of the embodiment which has just been described, and which comprises two fractional seconds indicators.
• the operating principle of each of these two indicators is completely similar to that of the fractional seconds indicator which has already been described in relation to FIGS. 2A, 2B and 2C.
• the description which follows is therefore limited essentially to explaining how the two indicators of fractions of a second are associated.
• the fractional second indicators of FIG. 3 each include a snail (respectively referenced 225a and 225b).
• the two snails are arranged to control two retrograde hands 215 and 217 to indicate the fractional part of a time interval measured by the chronograph.
• the snail 225a is mounted on the axis of the tenths of a second counter mobile (not shown) so that it rotates at the speed of one revolution per second
• the snail 225b is mounted on the axis of the counter mobile hundredths of a second counter (not shown) so that it rotates at the speed of ten revolutions per second.
• the hands 215 and 217 therefore respectively indicate the tenths and the hundredths of a second.
• FIG. 3 also shows two pinions 223a, 223b on the axes of which the retrograde needles are mounted, two scales 219, 221 in an arc, which are each formed by a series of graduations, two rakes 227a, 227b each provided with a toothed sector and a probe 231 a, 231 b, two racks 245a, 245b arranged to pivot around their respective axes 247a or 247b and to mesh each permanently with one of the two pinions 223a, 223b, a single control lever 251 which has a spout 255 and which is arranged to pivot about its axis 253, and two leaf springs 259a and 259b rigidly fixed by one of their ends to the pivot axis 253 of the control lever 251 and by the other end, respectively, to the pivot axes 247a and 247b of the two racks 245a and 245b.
• Figure 3 also shows that the two leaf springs 259a, 259b are not arranged in the extension of one another, but on the contrary make an angle of about 90 ° with each other. Indeed, in accordance with the embodiment which is the subject of this example, it is possible to freely choose the value of the angle between the ends of the two leaf springs which must be rigidly fixed to the pivot axis 253.
• FIG. 3 which illustrates the display device following the resetting of the chronograph, shows one of the two stable configurations of the bistable system.
• the racks 245a, 245b are turned fully counterclockwise, and the retrograde hands 215, 217 are both opposite the terminal graduation associated with the indication "zero" of one of the scales 219, 221.
• the spout 255 of the control lever 251 falls in the space between two columns of the column wheel, so that the control lever 251 rotates counterclockwise. This pivoting causes the switching of the entire bistable system, which thus passes from one to the other of these two stable configurations.
• the retrograde needles 215, 217 are each opposite the terminal graduation associated with the indication "start” (in other words: “departure”) from one of the scales 219 and 221.
• FIGS. 4A, 4B and 4C are schematic views of the fractional second indicator of a display device according to a second particular embodiment of the invention. These three figures respectively show the indicator after resetting to zero, after starting, and after stopping the chronograph.
• the second fraction indicator illustrated in Figures 4A, 4B and 4C has many features in common with the fraction indicator second of Figures 2A, 2B and 2C.
• the elements of FIGS. 4A, 4B and 4C which are identical or similar to elements which have already been described in relation to FIGS. 2a, 2B and 2C are referenced by the same numbers increased by two hundred.
• FIGS. 4A, 4B and 4C show in particular a pinion 323, a retrograde needle 315 rigidly mounted on the axis of the pinion, a series of graduations arranged along an arc of a circle so as to form a scale 319, a snail 325 mounted on the axis of a second fraction counter mobile (not shown), a rake 327 provided with a toothed sector 329, a probe 331 rigidly mounted on the rake, and a column wheel 335.
• the rake 327 is provided with a spout 341 which is recalled in the direction of the column wheel 335.
• FIGS. 4A, 4B and 4C show in particular a pinion 323, a retrograde needle 315 rigidly mounted on the axis of the pinion, a series of graduations arranged along an arc of a circle so as to form a scale 319, a snail 325 mounted on the axis of a second fraction counter mobile (not shown), a
• FIGS. 4A and 4B thus show the rake 327 in its standby position, in which the feeler 331 is kept away from the snail 325 and the toothed sector 329 is kept disengaged from the pinion 323.
• FIG. 4C it can be seen that, after the chronograph has stopped, the rake 327 is in its reading position in which the feeler 331 presses against the periphery of the snail 325, while the toothed sector 329 meshes with the pinion 323.
• FIGS. 4A, 4B and 4C show a first and a second hammer (respectively referenced 345 and 347) which are respectively returned towards two coaxial cores (not shown) by two springs 349 and 351.
• the hearts are both rigidly fixed on the axis of the pinion 323.
• the hammers 345 and 347 each carry a spout (referenced respectively 353 and 355) which is arranged to cooperate with the columns of the wheel to columns 335.
• FIG. 4A it can be seen that following the resetting of the chronograph, the beak 353 of the hammer 345 fell between two columns of the column wheel, causing the hammer 345 to drop against the heart with which it is associated with. The cooperation of the hammer 345 and the heart has the effect of bringing the retrograde needle 315 opposite the terminal graduation associated with the indication “zero” of the scale 319.
• FIG. 4B one can see that following the start of the chronograph, the spout 353 has been raised by one of the columns of the column wheel, and that the hammer 345 is no longer in contact with the heart with which it is associated.
• FIGS. 4A, 4B and 4C also show a spiral spring 352 which is wound around the axis of the pinion 323 and which is fixed by one end to the plate and by the other end to the axis of the pinion 323 which carries the retrograde needle 315, so as to return the retrograde needle 315 counterclockwise.
• the presence of the spiral spring 352 makes it possible to neutralize the play existing between the teeth of the toothed sector 329 and those of the pinion 323.
• FIGS. 5A, 5B, 5C and 5D relate to the fraction of second indicator of a display device according to a third particular embodiment of the invention.
• the fractional second indicator illustrated in these Figures have many features in common with the fractional second indicator in Figures 4A, 4B and 4C.
• the elements of FIGS. 5A, 5B and 5C which are identical or similar to elements which have already been described in relation to FIGS. 4A, 4B and 4C are referenced by the same numbers increased by one hundred.
• the third embodiment differs essentially from the first and from the second by the means which it comprises for bringing the retrograde hand to a first predefined position when the chronograph is reset to zero, and for bringing the retrograde hand to a second position preset, different from the first position, when starting the chronograph.
• FIGS. 5A, 5B and 5C show a single hammer (referenced 445) which is returned by a spring 449 in the direction of a one-piece cam formed by a heart 448 and a finger 450 (FIG. 5D and also visible in transparency in FIGS. 5A, 5B and 5C).
• the one-piece cam is itself rigidly fixed on the axis of the pinion 423.
• the hammer 445 carries a spout 453 arranged to cooperate with the columns of the column wheel 435.
• FIG. 5D it can be seen that the one-piece cam formed from the heart 448 and the finger 450.
• the finger 450 is arranged in the position usually occupied by the tip of the heart.
• FIGS. 5A, 5B and 5C also show a stop 454 arranged so as to be able to cooperate with the finger 450, a spiral spring 452 which is wound around the axis of the pinion 423 and which is fixed by one end to the plate and by the other end to the retrograde needle 415, so as to return the retrograde needle 415 and the finger 450 counterclockwise.
• the stop 454 is arranged so that the finger meets the stop when the needle 415 is above the indication "Start".
• the stop 454 can be produced in the form of an eccentric, in order to allow the second predefined position to be adjusted more finely.
• FIG. 5A it can be seen that following the resetting of the chronograph, the beak 453 of the hammer 445 fell between two columns of the column wheel, causing the hammer 445 to drop against the heart. The cooperation of the hammer 445 and the heart has the effect of bringing the retrograde needle 415 opposite the terminal graduation associated with the indication "zero" of the scale 419.
• the display device of the invention is not exclusively reserved for chronographs. It can also be fitted to other types of timepieces, such as countdown mechanisms or regatta watches. As a reminder, regatta watches are equipped with a countdown to display the last minutes before the start of the competition.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Measurement Of Unknown Time Intervals (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=63442509

Family Applications (1)

Country Status (5)

Families Citing this family (2)

Family Cites Families (10)

• 2019
  • 2019-08-28 JP JP2021511652A patent/JP7393418B2/ja active Active
  • 2019-08-28 CN CN201980056664.0A patent/CN112639629B/zh active Active
  • 2019-08-28 EP EP19780013.9A patent/EP3844574B1/de active Active
  • 2019-08-28 WO PCT/IB2019/057249 patent/WO2020044258A1/fr unknown
  • 2019-08-28 US US17/271,945 patent/US11841688B2/en active Active

Also Published As

Similar Documents

Legal Events