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American Patent :Paper lifting device No. US000001065092 |
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Description |
This is an american patent for improvement in the mechanism of a paper lifting device; here, also used to realize a convertible rooftop mechanism of a car. The structure is similar. It has been patented by Clarence Steere of Chicago, USA on June 1913 with Carl Wolfermann as the witness. |
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File size in byte |
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21.004 (21kB) |
Type of CAx-file |
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the pure Cinderella file without HTML- and JAR-files |
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