patent_219281.jpg

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CRC327385bab4
MD52679ea1165f59e2c999dc3b51fca051e
SHA-15d7e38bc08bba6495f773bfd85218ffa050d4e4a
SHA-256e852896bc8bfa98ab3d3bd1b8e3964b4d73a98aea966b59f4eef0344f5a5dcb4