E21D 15/563
By which a series of similarly shaped props can obtain an almost
Official title: {by which a series of similarly shaped props can obtain an almost equal load-capacity (setting props or chocks E21D15/584, E21D15/589)}
E21D15/563 (By which a series of similarly shaped props can obtain an almost) appears on 0 US grants and 0 published applications in this corpus.
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