EP1410826B1 - Snowboard with improved tip and lifted tail - Google Patents

Snowboard with improved tip and lifted tail Download PDF

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Publication number
EP1410826B1
EP1410826B1 EP20030103589 EP03103589A EP1410826B1 EP 1410826 B1 EP1410826 B1 EP 1410826B1 EP 20030103589 EP20030103589 EP 20030103589 EP 03103589 A EP03103589 A EP 03103589A EP 1410826 B1 EP1410826 B1 EP 1410826B1
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EP
European Patent Office
Prior art keywords
width
line
ski
board
maximum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP20030103589
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German (de)
French (fr)
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EP1410826A1 (en
Inventor
Jean Liard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skis Rossignol SA
Original Assignee
Skis Rossignol SA
Rossignol SA
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Publication date
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Priority to FR0212766 priority Critical
Priority to FR0212766A priority patent/FR2845611B1/en
Application filed by Skis Rossignol SA, Rossignol SA filed Critical Skis Rossignol SA
Publication of EP1410826A1 publication Critical patent/EP1410826A1/en
Application granted granted Critical
Publication of EP1410826B1 publication Critical patent/EP1410826B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32039721&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1410826(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Revoked legal-status Critical Current
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00Skis or snowboards
    • A63C5/04Structure of the surface thereof
    • A63C5/052Structure of the surface thereof of the tips or rear ends
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00Skis or snowboards
    • A63C5/04Structure of the surface thereof
    • A63C5/0405Shape thereof when projected on a plane, e.g. sidecut, camber, rocker

Description

  • The present invention relates to a board for gliding on snow, in particular an alpine ski having an improved spatula and / or heel lift.
  • As is known, the current trend is to improve the ease, that is to say, the maneuverability and comfort of the runway skis including weight gain. This could be achieved by reducing the length of the skis. Thus, for more than a decade, the average length of a ski has decreased by about 30 to 40 cm, from an average length of 1.90 m to 2 m, to arrive today at a length close to 1.60 m. Thus, the length of skis can go up to 10 cm below the size of the skier.
  • In a complementary manner, in order to maintain a sufficient bearing surface, it is observed that the width of the skis, in particular at the level of the spatula and / or at the level of the heel survey, is constantly increasing. Thus, for example, the width of the spatula of a ski has increased by about 20%.
  • In addition, there is also another evolution of alpine skis, namely the tendency to adopt more and more hollow lines of dimensions. Specifically, the tendency to dig the sideline is measured by increasing the width of the spatula and heel relative to the width of the pad area. Thus, this difference has practically doubled in the last ten years.
  • Indeed in the practice of downhill skiing, skis are designed to facilitate more and more turns "cut", that is to say that the skids of the rear of the ski exit corner are gradually decreased, and very often nonexistent. In this case, the steering of the turn is preferably "on the edge", which provides a gain in accuracy and speed. The radius of curvature of skis called "parabolic" are around 15 m, to allow the practice known as "carving".
  • Thus, given the different evolutions of the dimensions of the skis, it appears that the length of the edges decreases more and more, when the line of maximum front width and the line of maximum rear width are respectively at the level of the front contact line. and the rear contact line. This causes a snap cornering, when the skier bends his ski on the edge, the position in which he is most often. In the same way, the supports at exit of turn can also be too important. As a result, the flat trajectory of the ski in direct trace or on the edge crossing slope is tricky to master.
  • The snowboard described in the document US-2002/0125661 comprises the features of the preamble of claim 1. In addition, its line of maximum front width is in front of the front contact line.
  • Presentation of the invention
  • A first problem to be solved by the invention is that of preferably obtaining a short ski dug side lines whose bearing surface is increased relative to the skis of the state of the art. A second problem is the realization preferably of a ski whose spatula has parameters of such dimensions, it will promote a faster and more progressive engagement of the ski entry curve. A third problem is to design preferably a ski with a raised heel with parameters of such dimensions, that it will promote a strengthening of the progressivity of ski support at corner exit.
  • A "parabolic" gliding board, whose hollow of the sidecut is accentuated, comprises a lower face with a front contact line. This forward contact line is defined as the front limit of the contact area of the underside of the board on a horizontal flat surface, the board being applied to the horizontal flat surface. The board also includes a spatula. This spatula is defined as a front part of the board bent up to overcome obstacles. The spatula has a line of maximum front width, which is defined as a line of the underside of the board in the area of the spatula, where its width has a maximum.
  • According to a first aspect of the invention, the board is characterized in that the height of the line of maximum front width, measured between said lower face and said horizontal flat surface, is substantially between 5 mm and 15 mm.
  • In other words, thanks to the invention, during a turn, the length of contact of the edge of the board with the snow is increased, and this despite a decrease in the total length of the board. In addition, rejecting the maximum width line before forward and upward relative to the front contact line, the skier's attacks are reinforced while being progressive at the entrance of the turn. When the board bends in a bend, it is no longer the front contact line that is first in contact with the snow, but it is the maximum front width line. This results in the distance between the line of maximum width and the line of forward contact at the edge, becomes stressed cornering, while it is a totally inactive area, the board being flat.
  • By "parabolic" type ski or board, is meant a board having sidecut lines to obtain a radius of curvature in a turn that is substantially close to 15 m, adapted to the practice of ski-skiing commonly known in the English language. "Carving".
  • Preferably, the height of the line of maximum front width may be substantially between 8 mm and 12 mm, and preferably substantially equal to 10 mm.
  • The distance projected on the horizontal flat surface measured between the front contact line and the maximum front width line may be substantially between 40 mm and 90 mm. Preferably, the distance may be substantially between 50 mm and 80 mm, and preferably substantially equal to 65 mm.
  • The maximum front width can be substantially between 100 mm and 120 mm. Preferably, the maximum front width may be substantially between 105 mm and 115 mm, and preferably substantially equal to 109 mm.
  • The length of the spatula projected on the horizontal flat surface measured between the tip of the spatula and the front contact line may be substantially between 150 mm and 190 mm. Preferably, the length may be substantially between 155 mm and 185 mm, and preferably substantially equal to 160 mm
  • The board further comprises a lower face with a rear contact line. This rear contact line is defined as a rear limit of the contact area of the lower face of the board on a horizontal flat surface, the board being applied to the horizontal flat surface. The board may also include a heel lift. This heel survey is defined as a raised rear portion of the board from the rear contact line. The heel survey has a line of maximum rear width, which is defined as a line of the face lower in the heel survey area at the point where its width is at a maximum.
  • The height of the rear maximum width line, measured between said lower face and said horizontal flat surface, may be substantially between 1 mm and 50 mm. Preferably, the height may be substantially between 2 mm and 25 mm, and preferably substantially equal to 4 mm.
  • In other words, during a turn, the board is on the edge, and the total contact length of the edge with the snow is increased, from the maximum width line before and up to the maximum rear width line. , and this despite a decrease in the total length of the board. In addition, by pushing the line of maximum rear width rearwards and upwards relative to the rear contact line, the support of the skier is reinforced at the end of the turn. When the board flexes in a turn, the entire edge, between the maximum front width line and the rear maximum width line, becomes an effective cornering distance, while only the edge width, between the points front and rear supports is active the board being flat. In other words, the ski or the board according to the invention makes it possible to increase the active edge width during the turn phase.
  • The distance projected on the horizontal flat surface measured between the rear contact line and the rear maximum width line may be substantially between 2 mm and 100 mm. Preferably, the distance may be substantially between 10 mm and 70 mm, preferably substantially equal to 40 mm.
  • The maximum rear width can be substantially between 85 mm and 120 mm. Preferably, the width may be substantially between 90 mm and 115 mm. And, this width can be very preferably substantially equal to 100 mm.
  • The heel lift length projected on the horizontal flat surface, measured between the heel and the rear contact line may be substantially between 2 mm and 100 mm. Preferably, the length may be substantially between 20 mm and 80 mm, and preferably substantially equal to 40 mm.
  • Brief description of the figures
  • The invention will be well understood and its various advantages and different characteristics will become more apparent in the following description, in the example not limiting embodiment, with reference to the attached schematic drawings, in which:
    • Figure 1 shows a perspective view of an alpine ski;
    • Figure 2 shows a perspective view of the spatula of the ski according to the invention;
    • Figure 3 shows a side view of the spatula of Figure 2;
    • Figure 4 is a bottom view of the spatula of Figure 2;
    • Figure 5 is a perspective view of the heel survey in accordance with the invention;
    • Figure 6 is a side view of the heel survey of Figure 5;
    • Figure 7 shows a bottom view of the heel survey of Figure 5; and
    • FIG. 8 represents a partial perspective view of the alpine ski of FIG. 1, while turning on the edge,
    • Figure 9 is a sectional view of Figure 8, at the level of the front contact line.
    Detailed description of the invention
  • As illustrated in FIGS. 1 to 8, a board for gliding on snow, such as an alpine ski (1) comprises a spatula (2), a heel lift (3), a central pad zone (4), two lateral edges (5), an upper surface (6) formed by an upper protective and decorative layer and a lower face (7) delimited on either side by the two lateral edges (5).
  • According to paragraph 3.1.8 of ISO 6289, the spatula (2) is defined as the front part of the ski (1) curved upwards to easily overcome the obstacles. According to paragraph 3.1.12 of the same standard, the heel section (3) is defined as the rear part of the ski (1) from the rear contact line. According to paragraph 3.1.1 of the same standard, the underside (7) is defined as the side of the ski (1) which is in contact with the snow. The lower face (7) corresponds essentially to the gliding sole bordered by lateral edges (5).
  • The spatula (2) comprises the front tip (8) of the ski (1). According to paragraph 3.1.6 of the same standard, the nose (8) is defined as the extreme front point of the ski (1).
  • The ski (1) with the spatula (2) has a forward contact line (L CAV ). According to paragraph 3.1.9 of the same standard, the forward contact line (L CAV ) is defined as being the front limit of the contact area of the lower face (7) of the ski (1) on a horizontal flat surface (P H ), the ski (1) being applied on the same surface (P H ). The width of the ski (1) at the level of the front contact line (L CAV ) is substantially between 85 mm and 115 mm. Preferably, the width of the ski (1) is substantially between 90 mm and 110 mm. By way of example only, this width is substantially equal to 103 mm.
  • The ski (1) with the spatula (2) has a line of maximum front width (L bV ) distinct and located in front of the forward contact line (L CAV ) towards the front tip (8) of the ski (1 ). According to paragraph 4.7.2.1 of the same standard, the maximum front width (b V ) is defined as the width of the underside (7) in the area of the spatula (2), where it has a maximum.
  • A height (h AV ) of the line of maximum front width (L bV ) is measured between the lower face (7) and the horizontal plane surface (P H ) (see Figures 2 and 3). According to the invention, a value for the height (h AV ), having given a particularly efficient ski, is substantially 10 mm.
  • When the ski (1) is on the edge (5), the line of maximum front width (L bV ) becomes the front contact line temporarily effective. At the entry of a turn, the line of maximum front width (L bV ) is solicited first, so that the ski (1) will engage faster and more gradually at the beginning of the turn.
  • A distance (d AV ) is measured between the front contact line (L CAV ) and the line of maximum front width (L bV ) (see Figures 2, 3 and 4). This is the distance (d AV ) projected on the horizontal flat surface (P H ). According to the invention, a value for the distance (d AV ), having given a particularly efficient ski, is substantially 65 mm.
  • The maximum front width (b V ) is measured from square to square at the line of maximum front width (L bV ) (see Figures 2, 3 and 4). According to the invention, a value for the maximum width before (b V ), having given a particularly efficient ski, is substantially 109 mm.
  • The length of the spatula (l S ) is measured between the tip (8) and the forward contact line (L CAV ) (see Figures 2, 3 and 4). This is the length (l S ) projected on the horizontal flat surface (P H ). According to the invention, a value for the length of the spatula (1 S ), having given a particularly efficient ski, is substantially of 160 mm, which corresponds to about 175 mm for a spatula length "unrolled".
  • According to paragraph 4.10 of the same standard, the spatula height (h S ) is defined as the height of the lower edge of the point (8) of the ski (1) measured from a horizontal flat surface (P H ) against which the ski (1) is applied. This height (h S ) of the spatula (2) is substantially between 25 mm and 60 mm. Preferably, the spatula height (h S ) may be substantially between 35 mm and 55 mm. And, for a ski (1) particularly powerful, this height (h S ) can be very preferably substantially equal to 45 mm.
  • The heel survey (3) includes the rear heel (9) of the ski (1). According to paragraph 3.1.7 of the same standard, the heel (9) is defined as the rear end of the ski (1).
  • The ski (1) with the heel lift (3) has a rear contact line (L CAR ). According to paragraph 3.1.10 of the same standard, the rear contact line (L CAR ) is defined as the rear limit of the contact area of the lower face (7) of the ski (1) on a flat horizontal surface ( P H ), the ski (1) being applied to this same surface (P H ). The width of the ski (1) at the rear contact line (L CAR ) is substantially between 80 mm and 120 mm. Preferably, the width of the ski (1) is substantially between 90 mm and 110 mm. By way of example only, this width is substantially equal to 92 mm.
  • The ski (1) with the heel survey (3) has a line of maximum rear width (L bH ) distinct and located behind the rear contact line (L CAR ) in the direction of the heel (9) of the ski (1 ). According to paragraph 4.7.2.3 of the same standard, the maximum rear width (b H ) is defined as the width of the lower face (7) in the heel area of the ski (1), where it has a maximum.
  • A height (h AR ) of the rear maximum width line (L bH ) is measured between the lower face (7) and the horizontal plane surface (P H ) (see Figures 5 and 6). According to a second aspect of the invention, a value for the height (h AR ), having given a particularly efficient ski, is substantially 4 mm.
  • When the ski (1) is on the edge (5), the rear maximum width line (L bH ) becomes the temporarily effective rear contact line. At the end of the turn, the line of maximum rear width (L bH ) is solicited last, so that the ski (1) will hang better at the end of the turn.
  • A distance (d AR ) is measured between the rear contact line (L CAR ) and the rear maximum width line (L bH ) (see Figures 5, 6 and 7). This is the distance (d AR ) projected on the horizontal flat surface (P H ). According to the invention, a value for the distance (d AR ), having given a particularly efficient ski, is substantially 40 mm.
  • The maximum rear width (b H ) is measured from square to square at the maximum rear width line (L bH ) (see Figures 5, 6 and 7). According to the invention, a value for the maximum rear width (b H ), having given a particularly efficient ski, is substantially 100 mm.
  • The heel lift length (l T ) is measured between the heel (9) and the rear contact line (L CAR ) (see Figures 5, 6 and 7). This is the length (l T ) projected on the horizontal flat surface (P H ). According to the invention, a value for the heel lift length (l T ), which has given a particularly efficient ski, is substantially 40 mm.
  • In another particularly interesting embodiment, the rear maximum width line (L bH ) is rejected to the heel (9). In this case, the maximum rear width (b H ) is equal to the width of the heel (9). And, the distance (d AR ) between the rear contact line (L CAR ) and the line of maximum rear width (L bH ) is equal to the heel survey length (l T ).
  • According to paragraph 4.11 of the same standard, the heel height (h T ) is the height of the lower edge of the heel (9) measured from a horizontal flat surface (P H ) against which the ski (1) is applied. . This height (h T ) of heel (9) is substantially between 1 mm and 50 mm. Preferably, the heel height (h T ) may be substantially 2 mm and 25 mm. And, this height (h T ) can be very preferably substantially equal to 4 mm.
  • The width at the pad zone (4) is substantially between 60 mm and 90 mm. Preferably, the width at the pad zone (4) may be substantially between 65 mm and 85 mm, and preferably substantially equal to 68 mm.
  • When the skier takes a turn, he gives his ski (1) an angle to the slope. Thus, when the ski (1) is positioned on one of the two edges (5) during a turn (see Figures 8 and 9), it flexes under the supports given by the skier in edge catch. The edge at the central pad area (4) is pressed against the snow. The distance (d AV ) between the front contact line (L CAV ) and the line of width maximum forward (L bV ), as well as the distance (d AR ) between the rear contact line (L CAR ) and the line of maximum rear width (L bH ), which are inactive and raised when the ski (1) is at flat, become lengths solicited in edge grip. The distance (d eff ) between the maximum front width line (L bV ) and the maximum rear width line (L bH ) becomes the requested edge length.
  • The present invention is not limited to the embodiments described and illustrated. Many modifications can be made, without departing from the scope defined by the scope of the set of claims. In particular, the principle of the invention can be applied to a snowboard, in which the zones of greater width in spatula and heel are raised with respect to a horizontal plane of height greater than 5 mm. in order to make more progressive attachment in and out of turn, whether it is "backside" or "front-side".

Claims (12)

  1. A board for gliding over snow, the camber of the side cut of which is accentuated, comprising a bottom surface (7) with a forward contact line (LCAV), defined as being a forward limit of the contact zone of the bottom surface (7) of the board (1) on a horizontal planar surface (PH), the board (1) being placed on the horizontal planar surface (PH), and a shovel (2), defined as being a forward part of the board (1) that is curved upward in order to overcome obstacles, the shovel (2) having a width of the shoulder of the ski line (LbV), defined as being a line on the bottom surface (7) in the shovel zone (2) at the location where its width (bV) is at a maximum, characterized in that the height (hAV) of the width of the shoulder of the ski line (LbV), measured between said bottom surface (7) and said horizontal planar surface (PH), is substantially between 5 mm and 15 mm.
  2. The board for gliding as claimed in claim 1, characterized in that the height (hAV) is substantially between 8 mm and 12 mm, and is preferably substantially equal to 10 mm.
  3. The board for gliding as claimed in claim 1 or 2, characterized in that the distance (dAV) projected onto the horizontal planar surface (PH), measured between the forward contact line (LCAV) and the width of the shoulder of the ski line (LbV), is substantially between 40 mm and 90 mm.
  4. The board for gliding as claimed in claim 3, characterized in that the distance (dAV) is substantially between 50 mm and 80 mm, and is preferably substantially equal to 65 mm.
  5. The board for gliding as claimed in one of the preceding claims, characterized in that the width of the shoulder of the ski (bV) is substantially between 100 mm and 120 mm.
  6. The board for gliding as claimed in claim 5, characterized in that the width of the shoulder of the ski (bV) is substantially between 105 mm and 115 mm, and is preferably substantially equal to 109 mm.
  7. The board for gliding as claimed in one of the preceding claims, characterized in that the length (lS) of the shovel (2) projected onto the horizontal planar surface (PH), measured between the point (8) and the forward contact line (LCAV), is substantially between 150 mm and 190 mm.
  8. The board for gliding as claimed in claim 7, characterized in that the length (ls) is substantially between 155 mm and 180 mm, and is preferably substantially equal to 160 mm.
  9. The board for gliding as claimed in one of the preceding claims, characterized in which also comprises a bottom surface (7) with a rear contact line (LCAR), defined as being the rear limit of the contact zone of the bottom surface (7) of the board (1) on a horizontal planar surface (PH), the board (1) being placed on the horizontal planar surface (PH), and a tail turn-up (3), defined as being the turned-up rear part of the board (1) from the rear contact line (LCAR), the tail turn-up (3) having a width of the heel of the ski line (LbH), defined as being the line on the bottom surface (7) in the zone of the tail turn-up (3) at the location where its width (bH) is at a maximum, and the height (hAR) of the width of the heel of the ski line (LbH), measured between said bottom surface (7) and said horizontal planar surface (PH), is substantially between 1 mm and 50 mm, preferably substantially between 2 and 25 mm, and is very preferably substantially equal to 4 mm.
  10. The board for gliding as claimed in claim 9, characterized in that the distance (dAR) projected onto the horizontal planar surface (PH), measured between the rear contact line (LCAR) and the width of the heel of the ski line (LbH), is substantially between 2 mm and 100 mm, preferably substantially between 10 mm and 70 mm, and very preferably substantially equal to 40 mm.
  11. The board for gliding as claimed in claim 9 or 10, characterized in that the width of the heel of the ski (bH) is substantially between 85 mm and 120 mm, preferably substantially between 90 mm and 115 mm, and very preferably substantially equal to 100 mm.
  12. The board for gliding as claimed in one of claims 9 to 11, characterized in that the length (lT) of the tail turn-up (3) projected onto the horizontal planar surface (PH), measured between the tail (9) and the rear contact line (LCAR), is substantially between 2 mm and 100 mm, preferably substantially between 20 mm and 80 mm, and very preferably substantially equal to 40 mm.
EP20030103589 2002-10-15 2003-09-29 Snowboard with improved tip and lifted tail Revoked EP1410826B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0212766 2002-10-15
FR0212766A FR2845611B1 (en) 2002-10-15 2002-10-15 Snow snowboard with spatula and improved heel lifting

Publications (2)

Publication Number Publication Date
EP1410826A1 EP1410826A1 (en) 2004-04-21
EP1410826B1 true EP1410826B1 (en) 2007-11-14

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Family Applications (1)

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EP20030103589 Revoked EP1410826B1 (en) 2002-10-15 2003-09-29 Snowboard with improved tip and lifted tail

Country Status (5)

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US (1) US6986525B2 (en)
EP (1) EP1410826B1 (en)
AT (1) AT378096T (en)
DE (1) DE60317439T2 (en)
FR (1) FR2845611B1 (en)

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US8684393B2 (en) 2010-01-08 2014-04-01 Skis Rossignol Alpine ski

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US7690674B2 (en) * 2006-08-10 2010-04-06 Armada Skis, Inc. Snow riding implement
US20080106068A1 (en) * 2006-11-01 2008-05-08 Drake Powderworks, Llc Ski and Snowboard
FR2908665B1 (en) * 2006-11-22 2009-03-20 Salomon Sa SKI
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JP5584864B2 (en) * 2009-06-30 2014-09-10 利昭 山根 snow board
FR2947461B1 (en) 2009-07-06 2011-06-10 Rossignol Sa Snowboard board on snow
FR2952829B1 (en) * 2009-11-20 2012-01-20 Salomon Sas ALPINE SKIING
FR2954171B1 (en) * 2009-12-23 2011-12-09 Rossignol Sa Snow surf board
FR2955262B1 (en) * 2010-01-21 2011-12-30 Rossignol Sa Snow surf board
FR2978670B1 (en) * 2011-08-01 2014-06-20 Serge Dupraz Compact ski with hollow edge lines
FR2978671B1 (en) * 2011-08-01 2015-01-16 Serge Dupraz Ski with hollow rod lines and profile spatula
US9352766B2 (en) * 2012-07-17 2016-05-31 Marlow Dynamics System for gliding on snow with improved mobility
ITMI20131463A1 (en) * 2013-09-06 2015-03-07 Gaia S R L Ski, in particular ski-touring skis

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Also Published As

Publication number Publication date
FR2845611A1 (en) 2004-04-16
US20040082395A1 (en) 2004-04-29
EP1410826A1 (en) 2004-04-21
DE60317439D1 (en) 2007-12-27
AT378096T (en) 2007-11-15
US6986525B2 (en) 2006-01-17
FR2845611B1 (en) 2004-12-03
DE60317439T2 (en) 2008-03-20

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