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Straw forming machine
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Patent number 11,364,702
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Issue date Jun 21, 2022
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Chien-Ming Huang
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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Method for manufacturing paper straw
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Patent number 11,338,539
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Issue date May 24, 2022
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HOU JING SHENG JINGHUA CO., LTD.
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Hao-I Tsai
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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System and method for cutting straws
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Patent number 11,117,343
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Issue date Sep 14, 2021
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Hoffmaster Group, Inc.
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Jerome P. Schultz
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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Drinking straw with piercing end
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Patent number 9,833,092
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Issue date Dec 5, 2017
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UNISTRAW HOLDINGS PTE. LTD.
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Kendall Norman Palazzi
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3659506
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Patent number 3,659,506
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Issue date May 2, 1972
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3659507
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Patent number 3,659,507
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Issue date May 2, 1972
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3316820
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Patent number 3,316,820
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Issue date May 2, 1967
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2501938
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Patent number 2,501,938
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Issue date Mar 28, 1950
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B26 - HAND CUTTING TOOLS CUTTING SEVERING