TWI670203B - 具有擠製複合支持塊之托板及其相關製造方法 - Google Patents
具有擠製複合支持塊之托板及其相關製造方法 Download PDFInfo
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- TWI670203B TWI670203B TW105142429A TW105142429A TWI670203B TW I670203 B TWI670203 B TW I670203B TW 105142429 A TW105142429 A TW 105142429A TW 105142429 A TW105142429 A TW 105142429A TW I670203 B TWI670203 B TW I670203B
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- support block
- opening
- pallet
- support
- composite
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- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/38—Details or accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/0004—Rigid pallets without side walls
- B65D19/0053—Rigid pallets without side walls the load supporting surface being made of more than one element
- B65D19/0077—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces
- B65D19/0089—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces the base surface being made of more than one element
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- B65D19/0093—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces the base surface being made of more than one element forming discontinuous or non-planar contact surfaces
- B65D19/0095—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces the base surface being made of more than one element forming discontinuous or non-planar contact surfaces and each contact surface having a stringer-like shape
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
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Abstract
一種托板包含一貨物層和一基底層,以及數個支持塊總成將該貨物層和該基底層分開。各個支持塊總成包含第一和第二支持塊。該第一支持塊具有一在一水平方向上延伸穿過的第一開口,而該第二支持塊具有一在該水平方向上延伸穿過的第二開口。該第二支持塊被插入至該第一支持塊的該第一開口之內。
Description
發明領域 本發明係有關於托板(pallets)的領域,且更特別地是有關於一具有擠製複合支持塊(extruded composite support blocks)的托板,及其相關製造方法。
發明背景 傳統的托板典型地是由木材所製成並且包含一基底層(base layer)和一貨物層(cargo layer)藉由支持塊(support blocks)而被分開來。該基底層和貨物層亦被稱為底部和頂部甲板(bottom and top decks)。
傳統地,該基底層和貨物層是多層(multiple layers),每個層分別地具有端頭甲板板件(end deck boards)被組裝在延伸該托板的完整長度或寬度的連接板件(connector boards)之上。該等端頭甲板板件經由該等連接板件而被釘入至該等支持塊之內,俾以建立該托板的初始結構。該等端頭甲板板件亦被稱為引導板件(lead boards)。中間甲板板件(intermediate deck boards)被放置在該等端頭甲板板件之間。任擇地,該基底層可以是一個單層,其中端頭甲板板件不重疊連接板件。
為了移動上面具有貨物的托板,來自一堆高機(forklift)或一托板起重機(pallet jack)的叉齒(tines)在該托板之一引導板件側的上方被插入至該基底層和貨物層之間的間隙(gaps)之內。在某些情況中,該堆高機或托板起重機的叉齒在對準(alignment)期間可能會接觸到該等支持塊。若力量很大,該等支持塊可能被損壞。
該等支持塊通常為實木(solid wood)。實木支持塊提供良好的強度(strength)和耐久性(durability)。端視它們的尺寸而定,實木支持塊可為沉重的,這增加了該托板的最終重量。每個實木支持塊的成本典型地係根據它的體積以及所用木材的類型而定。
作為實木支持塊的一個替代物,複合材料(composite materials)可被使用。在發給Ingham的美國專利公開案第2011/0192326號揭露一種托板,其包含有:一第一甲板,一第二甲板,以及數個支持塊將該第一和第二甲板連接在一起以便形成一個托板。該等支持塊包含至少一個回收的熱塑性組件(recycled thermoplastic component)含有至少大約20%重量計的一種回收的尼龍毯材料(recycled nylon carpet material)。
Ingham揭露該複合固體支持塊可具有不同的外形(shapes)和幾何圖形(geometries)。為了形成該等複合支持塊,壓縮模製(compression molding)、射出模製(injection molding)或擠製技術(extrusion techniques)可被使用。固體複合支持塊由於複合材料的厚度而不容易適合於擠製。如果該複合材料包含塑料,該塑料如果冷卻不良可能會產生變形(deformities)。
作為固體複合支持塊的一個替代物,Ingham進一步揭露一種中空複合支持塊,其具有一基本上為矩形的頂部(substantially rectangular shaped top)帶有圓角區域(rounded corner areas)以及一中空中央區域(hollow center area)。當被擠製時,該中空複合支持塊的更薄的壁更快地冷卻。雖然該中空複合支持塊相較於一固體支持塊具有一減少的重量和體積,因為該等更薄的壁,它可能不夠強固到足以耐受沉重的托板負載(pallet loads)。因此,對於係為輕質的而同時能支撐沉重的托板負載的複合中空支持塊,存在有一需要。
發明概要 一種托板包含一貨物層、一基底層以及數個支持塊總成將該貨物層和該基底層分開。各個支持塊總成可包含一第一支持塊具有一在一水平方向上延伸穿過的第一開口,以及一第二支持塊具有一在該水平方向上延伸穿過的第二開口。該第二支持塊可被插入至該第一支持塊的該第一開口之內。該支持塊總成是一中空結構,該中空結構相較於一個單一固體支持塊有利地減低重量和成本,但仍然提供用以支撐沉重的托板負載的強度和耐久性。
該第二支持塊中的該第二開口可以正交於該第一支持塊的該第一開口,俾以封閉該第二開口。在此具體例中,該第二支持塊之被曝露的外部側壁可被對齊於該第一支持塊之被曝露的外部側壁。介於該第一和第二支持塊之被曝露的外部側壁之間的介面可被完全密封(hermetically sealed)。一被完全密封的支持塊總成防止緊固件(fasteners)被曝露於第二開口之內,還有防止污物和水蓄積在第二開口之內。
該托板可進一包含有數個緊固件將該貨物層和基底層耦合至數個支持塊總成,該數個緊固件延伸至該等第二支持塊的各自第二開口之內。
該第一支持塊可為矩形形狀而延伸穿過它的該第一開口亦可為矩形形狀。該第二支持塊可為矩形形狀而延伸穿過它的該第二開口亦可為矩形形狀。
該第一和第二支持塊可包含有一複合材料。該複合材料可包含有木材和塑料。舉例而言,該複合材料可包含有大約50%木材以及大約50%塑料。該木材可包含有木屑(wood dust)和廢木料(wood waste)之至少一者,而該塑料可包含有回收的塑料。該貨物層和基底層可各自包含有數個木材板件(wood boards)。
另一方面是針對一種用以製造一托板的方法,其包括:提供一貨物層和一基底層,以及形成數個支持塊總成將該貨物層和該基底層分開。形成各個支持塊總成可包括形成一第一支持塊具有一在一水平方向上延伸穿過的第一開口,以及形成一第二支持塊具有一在該水平方向上延伸穿過的第二開口。該第二支持塊可被插入至該第一支持塊的該第一開口之內以形成該支持塊總成。該方法可進一步包括將該貨物層和該基底層耦合至數個支持塊。為了形成該第一和第二支持塊,擠製技術可被有利地使用。
較佳實施例之詳細說明 本發明現在將參照附圖而於下文中被更全面地描述,於附圖中顯示了本發明的較佳具體例。但是,本發明可以許多不同的形式來具體化,而不應被解釋為受到此處所描述的具體例之限制。相反地,這些具體例被提供而使得本案揭露內容會是徹底且完整的,且將本發明的範圍充分地傳達給那些熟習本領域技術的人員。於全文中相同的編號意指相同的元件,而加撇符號(prime notation)被用來表示另擇的具體例中的類似元件。
現在參照圖1-5,一具有擠製複合支持塊總成50之托板20將被討論。如圖1中所圖解說明的,該托板20包含一貨物層30、一基底層40以及數個支持塊總成50將該貨物層和該基底層分開。該等支持塊總成50係位在該托板20的角落之處。中間支持塊55被間隔於該等支持塊總成50之間。
每個支持塊總成50包含一成對的中空支持塊60、70,有一個支持塊被置放在另一個支持塊的內部。每個中間支持塊55是一個單一固體支持塊。任擇地,每個中間支持塊55亦可被配置成包含一成對的中空支持塊。
圖解說明的貨物層30包含端頭甲板板件32被組裝在延伸該托板20的完整長度或寬度的連接板件34之上。該等端頭甲板板件32經由該等連接板件34而被釘入至該等支持塊總成50之內。該等端頭甲板板件32亦被稱為引導板件(lead boards)。中間甲板板件36被放置在該等端頭甲板板件32之間。圖解說明的基底層40包含不重疊連接板件44的端頭甲板板件42,俾以形成一個單層。
如那些熟習本領域技術的人員容易體會到的,該貨物層30和基底層40不受限於圖解說明的具體例。舉例來說,位在該貨物層30內的該等端頭甲板板件32和該等連接板件34可以不重疊,俾以形成一個單層。位在該貨物層30和基底層40內的板件典型地是木材。
更特別地,如圖解說明於圖2和圖3之中的,每個支持塊總成50包含一第一支持塊60具有一延伸穿過的第一開口62,以及一第二支持塊70具有一延伸穿過的第二開口72。位在該第一支持塊60之內的該第一開口62被對準於該貨物層30和基底層40。對準意指該第一支持塊60被定向而使得該第一開口62在一水平方向上延伸。換言之,該第一開口62在相同於該貨物層30和基底層40的水平方向上延伸。同樣地,該第二支持塊70被定向而使得該第二開口72亦在該水平方向上延伸。
如圖解說明於圖4之中的,該第二支持塊70接而被插入至該第一支持塊60的該第一開口62之內。如圖解說明於圖5之中的,當被完全地插入時,該二支持塊60、70因此形成該支持塊總成50。該支持塊總成50是一個中空結構,該中空結構相較於一個單一固體支持塊減低了重量和成本,但仍然提供用以支撐沉重的托板負載的強度和耐久性。
仍然參照圖5,位在該第二支持塊70之內的該第二開口72係正交於位在該第一支持塊60之內的該第一開口62,而使得該第二開口被封閉。換言之,在被插入至該第一支持塊60的該第一開口62之內前,該第二支持塊70被旋轉90度。該支持塊總成50的這個配置提供了一個中空但仍然完全封閉的支持塊總成。該第二支持塊70之被曝露的外部側壁73被對準於該第一支持塊60之被曝露的外部側壁63。
如圖解說明於圖6之中的,在該支持塊總成50¢之一另擇的具體例中,該第二支持塊70¢的方位(orientation)係相同於該第一支持塊60¢,而使得當該第二支持塊被插入至該第一支持塊之內時,該第二開口72¢被曝露出。
現在參照圖7-9,該第一支持塊60的示範尺度將被討論。在一頂視圖中,該第一支持塊60沿著邊緣81是150 mm寬以及沿著邊緣82是150 mm深。在一面朝向該第一開口62的側視圖中,該第一支持塊60沿著邊緣83之一高度是100 mm。在該第一開口62的上方和下方的壁84、85之厚度分別是12.5 mm,而使得該第一開口62沿著邊緣86之一高度是75 mm。在該第一開口62的左側和右側的壁87、88之厚度分別是15 mm,而使得該第一開口62沿著邊緣89之一寬度是120 mm。
現在參照圖10-12,該第二支持塊70的示範尺度將被討論。在一頂視圖中,該第二支持塊70沿著邊緣91是150 mm寬以及沿著邊緣92是120 mm深。在一面朝向該第二開口72的側視圖中,該第二支持塊70沿著邊緣93之一高度是75 mm。在該第二開口72的上方和下方的壁94、95之厚度分別是12.5 mm,而使得該第二開口72沿著邊緣96之一高度是50 mm。在該第二開口72的左側和右側的壁97、98之厚度分別是15 mm,而使得該第二開口72沿著邊緣99之一寬度是120 mm。
該第一和第二支持塊60、70係使用一種複合材料而被形成。該複合材料是木材和塑料之一混合物。更特別地,該木材包含木屑和/或廢木材,而該塑料包含但不限於:適合於供一用於托板的高強度複合材料(high strength composite material)來用的塑料材料,諸如對許多化學溶劑(chemical solvents)、鹼(bases)和酸(acids)具抗性的熱塑性聚合物(thermoplastic polymers)。
舉例來說,熱塑性聚合物包含聚丙烯(polypropylene)、聚乙烯(polyethylene)、聚胺基甲酸酯(polyurethane)、聚氯乙烯(polyvinylchloride)以及聚(對酞
酸乙二酯)[poly(ethylene terephthalate)]。該塑料可以跟據特別的托板設計(pallet design)、負載容量(load capacity)以及其他要求來選擇。該塑料可為回收的塑料(recycled plastic)、新製塑料(virgin plastic)或此等的混合物。
用於該等支持塊60、70的複合材料可在40-60%木材以及60-40%回收的塑料之間變化。在一具體例中,該複合材料包含50%木材以及50%回收的塑料。
為了形成該等支持塊60、70,壓縮模製、射出模製或擠製技術可被使用。由於該等支持塊60、70是中空的,如那些熟習本領域技術的人員容易體會到的,擠製法會是一較佳的技術,因為各個支持塊的“薄”壁在幾個合理的循環時間(cycle times)之內冷卻。
此外,由於該複合材料包含塑料,熱可以被用來密封該第一和第二支持塊60、70之間的外部曝露介面(outer exposed interfaces),俾以完全密封該第二開口72。這是就當中的第二支持塊70的第二開口72係呈正交被插入至第一支持塊60的第一開口62之內的配置來執行。一被完全密封的第二開口72防止緊固件100被曝露,還有防止污物和水蓄積在第二開口72之內。
現在參照圖13,緊固件100被用來將該貨物層30中的板件耦合至該支持塊總成50之一頂部,以及將該基底層40中的板件耦合至該支持塊總成50之一底部。在圖解說明的具體例中,該等緊固件100是釘子(nails)。其他型式的緊固件可被使用,舉例來說,譬如螺釘(screws)。
該等緊固件100亦將該第一和第二支持塊60、70固持在適當位置。該等緊固件100延伸穿過該第一和第二支持塊60、70。結果是,該等緊固件的頂端102被曝露於第二空腔72之內。該第一和第二支持塊60、70的另一個優點是:在該支持塊總成50和該貨物層30與該基底層40中的板件之間存在有彈性(resiliency)。如果來自一堆高機的叉齒,舉例而言,碰撞到該貨物層30中的端頭甲板板件32,衝擊力(impact force)經由該等緊固件100而被傳遞至該支持塊總成50。該第一和第二支持塊60、70之間的移動(movement)或位移(shifting)幫助吸收某些的衝擊。
另一個方面是針對一種用以製造一如上所述的托板20的方法。現在參照圖解說明於圖14之中的流程圖110,起自啟動(方塊112),該方法包括在方塊114之處提供一貨物層30和一基底層40。該方法進一步包括在方塊116之處形成一第一支持塊60具有一在一水平方向上延伸穿過的第一開口62,以及在方塊118之處形成一第二支持塊70具有一在該水平方向上延伸穿過的第二開口72。該第二支持塊70在方塊120之處被插入至該第一支持塊60的該第一開口62之內,俾以形成一支持塊總成50。該貨物層30和基底層40接而在方塊122之處被耦合至數個支持塊總成50。該方法在方塊124之處結束。
一受益於前面的描述和相關附圖內所呈現的教導之熟習本領域技術的人員將會想到本發明的許多修飾以及其他具體例。因此,可瞭解到本發明並不受限於所揭示的特定具體例,以及修飾與具體例被意欲要被包含在檢附的申請專利範圍之範疇內。
20‧‧‧托板
30‧‧‧貨物層
32、42‧‧‧端頭甲板板件
34、44‧‧‧連接板件
36‧‧‧中間甲板板件
40‧‧‧基底層
50、50¢‧‧‧擠製複合支持塊總成
55‧‧‧中間支持塊
60、60¢‧‧‧第一支持塊
70、70¢‧‧‧第二支持塊
62‧‧‧第一開口
72‧‧‧第二開口、第二空腔
72¢‧‧‧第二開口
63、73‧‧‧外部側壁
81、82、83‧‧‧邊緣
84、85‧‧‧壁
86、89‧‧‧邊緣
87、88‧‧‧壁
91、92、93‧‧‧邊緣
94、95‧‧‧壁
96、99‧‧‧邊緣
97、98‧‧‧壁
100‧‧‧緊固件
102‧‧‧頂端
110‧‧‧流程圖
112、114、116‧‧‧方塊
118、120‧‧‧方塊
122、124‧‧‧方塊
圖1是一依據本發明之具有擠製複合支持塊總成的托板之一透視圖(perspective view)。
圖2是一來自圖1中所圖解說明的支持塊總成的第一支持塊之一透視圖。
圖3是一來自圖1中所圖解說明的支持塊總成的第二支持塊之一透視圖。
圖4是該第二支持塊被部分地插入至該第一支持塊之內俾以形成圖1中所圖解說明的支持塊總成之一透視圖。
圖5是圖1中所圖解說明的支持塊總成之一透視圖。
圖6是圖5中所圖解說明的支持塊總成之一另擇的具體例之一透視圖。
圖7-9是有關於圖2中所圖解說明的該第一支持塊之帶有尺度(dimensions)的頂視和側視圖(top and side views)。
圖10-12是有關於圖3中所圖解說明的該第二支持塊之帶有尺度的頂視和側視圖。
圖13是圖1中所圖解說明的該托板之一角落具有緊固件將該貨物層和該基底層耦合至一支持塊總成之一部分橫截面圖(partial cross-sectional view)。
圖14是用以製造如圖1中所圖解說明的具有擠製複合支持塊總成之托板的流程圖(flowchart)。
Claims (25)
- 一種托板,其包含有: 一貨物層; 一基底層;以及 將該貨物層和該基底層分開之數個支持塊總成,各個支持塊總成包含有: 一第一支持塊,其具有一在一水平方向上延伸穿過的第一開口,以及 一第二支持塊,其具有一在該水平方向上延伸穿過的第二開口,以及 該第二支持塊被插入至該第一支持塊的該第一開口之內。
- 如請求項1的托板,其中位在該第二支持塊之內的該第二開口係正交於位在該第一支持塊之內的該第一開口,俾以封閉該第二開口。
- 如請求項2的托板,其中該第二支持塊之被曝露的外部側壁被對準於該第一支持塊之被曝露的外部側壁。
- 如請求項3的托板,其中介於該第一和第二支持塊之被曝露的外部側壁之間的介面被密封。
- 如請求項1的托板,進一步包含有數個緊固件將該貨物層和基底層耦合至該數個支持塊總成,該數個緊固件延伸至該等第二支持塊的各自第二開口之內。
- 如請求項1的托板,其中該第一支持塊是矩形形狀且延伸穿過它的該第一開口亦為矩形形狀,以及其中該第二支持塊是矩形形狀且延伸穿過它的該第二開口亦為矩形形狀。
- 如請求項1的托板,其中該第一和第二支持塊包含有一複合材料。
- 如請求項7的托板,其中該複合材料包含有木材和塑料。
- 如請求項8的托板,其中該複合材料包含有大約50%木材以及大約50%塑料。
- 如請求項8的托板,其中該木材包含有木屑和廢木料之至少一者,以及其中該塑料包含有回收的塑料。
- 如請求項1的托板,其中該貨物層和基底層各自包含有數個木材板件。
- 一種托板,其包含有: 一貨物層; 一基底層;以及 將該貨物層和該基底層分開之數個複合支持塊總成,各個複合支持塊總成包含有: 一第一複合支持塊,其具有一在一水平方向上延伸穿過的第一開口, 一第二複合支持塊,其具有一在該水平方向上延伸穿過的第二開口, 該第一和第二複合支持塊包含有一複合材料包含有木材和塑料,以及 該第二複合支持塊被插入至該第一複合支持塊的該第一開口之內,位在該第二複合支持塊之內的該第二開口係正交於位在該第一複合支持塊之內的該第一開口,俾以封閉該第二開口。
- 如請求項12的托板,其中該第二複合支持塊之被曝露的外部側壁被對準於該第一複合支持塊之被曝露的外部側壁。
- 如請求項13的托板,其中介於該第一和第二複合支持塊之被曝露的外部側壁之間的介面被密封。
- 如請求項12的托板,進一步包含有數個緊固件,其將該貨物層和基底層耦合至該數個複合支持塊總成,該數個緊固件延伸至該等第二複合支持塊的各自第二開口之內。
- 如請求項12的托板,其中該複合材料包含有大約50%木材以及大約50%塑料。
- 如請求項12的托板,其中該木材包含有木屑和廢木料之至少一者,以及其中該塑料包含有回收的塑料。
- 一種用以製造一托板的方法,其包括: 提供一貨物層和一基底層; 形成將該貨物層和該基底層分開之數個支持塊總成,形成各個支持塊總成包括: 形成一第一支持塊,其具有一在一水平方向上延伸穿過的第一開口,以及 形成一第二支持塊,其具有一在該水平方向上延伸穿過的第二開口,以及 將該第二支持塊插入至該第一支持塊的該第一開口之內;以及 將該貨物層和該基底層耦合至該等數個支持塊。
- 如請求項18的方法,其中位在該第二支持塊之內的該第二開口係正交於位在該第一支持塊之內的該第一開口,俾以封閉該第二開口。
- 如請求項19的方法,其中該第二支持塊之被曝露的外部側壁被對準於該第一支持塊之被曝露的外部側壁。
- 如請求項20的方法,進一步包括密封介於該第一和第二支持塊之被曝露的外部側壁之間的介面。
- 如請求項18的方法,其中該耦合包括使用數個緊固件,該數個緊固件延伸至該等第二支持塊的各自第二開口之內。
- 如請求項18的方法,其中該第一和第二支持塊是擠製的。
- 如請求項18的方法,其中該第一支持塊是矩形形狀且延伸穿過它的該第一開口亦為矩形形狀,以及其中該第二支持塊是矩形形狀且延伸穿過它的該第二開口亦為矩形形狀。
- 如請求項18的方法,其中該第一和第二支持塊包含有一複合材料,該複合材料包含有木材和塑料。
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US14/989,011 | 2016-01-06 |
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CL2018001566A1 (es) | 2018-08-03 |
EA201891567A1 (ru) | 2018-12-28 |
EP3400176A4 (en) | 2019-08-07 |
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AU2016384581A1 (en) | 2018-06-07 |
EP3400176A1 (en) | 2018-11-14 |
CA3005587C (en) | 2020-07-07 |
CA3005587A1 (en) | 2017-07-13 |
EA035968B1 (ru) | 2020-09-07 |
WO2017119897A1 (en) | 2017-07-13 |
US10023354B2 (en) | 2018-07-17 |
NZ742615A (en) | 2019-11-29 |
CN108883856A (zh) | 2018-11-23 |
BR112018013773A2 (pt) | 2018-12-11 |
KR20180116246A (ko) | 2018-10-24 |
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ZA201600295B (en) | 2017-05-31 |
US20170190463A1 (en) | 2017-07-06 |
US9776762B2 (en) | 2017-10-03 |
MX2018008325A (es) | 2018-09-21 |
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