Remote control oil sump drain valve

Machines not elsewhere specified – Engine – Element or attachment

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Details

D23 19, D1501

Patent

active

D02665182

REFERENCES:
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patent: 3623698 (1971-11-01), Couper et al.
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patent: 3664633 (1972-05-01), Schaffner
patent: 3871483 (1975-03-01), Espinosa et al.
patent: 3954250 (1976-05-01), Grace
patent: 4086981 (1978-05-01), Mitsui

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