Hand pump

Details Hand pump Hand pump

1998-10-16

2000-02-08

Taylor, Robin V.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Hand or foot operated pump or well curb

1502

Patent

active

D0420428&

REFERENCES:
patent: D175660 (1955-09-01), Welch
patent: D222457 (1971-10-01), Bair
patent: D256945 (1980-09-01), Willis
patent: 4357798 (1982-11-01), Hung

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