Device for lifting boats
United States Patent 2815131
US Patent References:
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- - 1061213

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- - 1116761

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- - 1192158

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Inventors:
Lunsman, John E.
Lunsman, Norman F.
Publication Date:
12/03/1957
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Assignee:
LUNSMAN MFG COMPANY INC
Primary Class:
269/61
Other Classes:
114/373, 269/130, 254/310, 269/296
International Classes:
B63B23/04; B63B23/00
US Patent References:
1429432Hand truck
2185083Boat lifting rack
2294864Apparatus for carrying and launching boats
2465118Boat derrick
2552424Boat mooring arrangement
2581676Boat mooring apparatus
2632900Boat handling apparatus