Drum pump

Details Drum pump Drum pump

1986-11-10

1989-04-04

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Hand or foot operated pump or well curb

Patent

active

D03005534

REFERENCES:
patent: D256945 (1980-09-01), Willis
patent: 1338739 (1920-05-01), Lano
patent: 1466804 (1923-09-01), Orr
patent: 1517805 (1924-12-01), Spaeth
patent: 2344005 (1944-03-01), Sundholm
patent: 3473479 (1969-10-01), Sundholm

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