| 摘要 |
A series of frames or sections, some of which are intended for the attachment of material resulting in planar surfaces suitable for walking or stepping upon, securely and sequentially hinged together in a linear manner, with supporting elements, mountable to a boat or other structure, which collapses into a compact space when closed, and when open presents a stable ramp-like device, providing a new method and apparatus for safe transport between a boat, or other structure, and water.
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