MAKE A MEME View Large Image Piston-ring extractor.jpg Patent drawing Piston ring ectractor US Patent office Filing date Filing date Sep 7 1920 Gustav Monckmeier PD-USGov Patent drawings Extractors tools
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Keywords: Piston-ring extractor.jpg Patent drawing Piston ring ectractor US Patent office Filing date Filing date Sep 7 1920 Gustav Monckmeier PD-USGov Patent drawings Extractors tools
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