Hydraulic and earth engineering – Marine vessel portage – launching – or removing – Dry dock
Patent
1977-12-16
1979-05-22
Shapiro, Jacob
Hydraulic and earth engineering
Marine vessel portage, launching, or removing
Dry dock
248354S, B63C 100
Patent
active
041556674
ABSTRACT:
The invention contemplates shoring structure for winter or other land-based storage of small boats, such as keeled sailboat hulls, wherein the basic structure is adaptable to the inherently stable and locked retention of each of a relatively wide variety of different hull shapes, and wherein such structure may be collapsed and stored within relatively compact volumetric confines.
REFERENCES:
patent: 3139277 (1964-06-01), Mears
patent: 3579996 (1971-05-01), Edson
patent: 3586285 (1971-06-01), Modzelewski
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