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Product Warranty Provision (Narrative) (Details) | 3 Months Ended
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Mar. 31, 2018
Product Warranty Provision 1 | 120,000
Product Warranty Provision 2 | 200,000

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- Definition Product Warranty Provision 1 + References No definition available. + Details
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- Definition Product Warranty Provision 2 + References No definition available. + Details
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