Rock separator

Details Rock separator Rock separator

1993-09-17

1994-12-13

Holtje, Nelson C.

Animal husbandry

Aquarium, fish bowl, or stand therefor

Element or attachment

Patent

active

D03534766

REFERENCES:
patent: D29929 (1899-01-01), Hodge
patent: 259364 (1882-06-01), Cauhape
patent: D302019 (1989-07-01), Dehlen
patent: 1352490 (1920-09-01), Wilkins
patent: 1541967 (1925-06-01), Klinkenstein et al.
patent: 2637299 (1953-05-01), Salkey

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