Hydrographic buoy

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Buoy

Design Patent

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Design Patent

active

D0440171

CLAIM:
The ornamental design for hydrographic buoy, as shown.

REFERENCES:
patent: D. 248840 (1978-08-01), Aesch, Sr. et al.
patent: D. 310180 (1990-08-01), Etkin
patent: D. 363445 (1995-10-01), Warner et al.
patent: 4809458 (1989-03-01), Tanikuro et al.
Product Brochure for Smart-800 buoy manufactured by Seatex AS of Norway.
Author unknown, publication at least as early as Mar. 1996.

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