Air pump

Details Air pump Air pump

1992-05-22

1994-10-18

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

D03516458

REFERENCES:
patent: D120385 (1940-05-01), Murnane
patent: D220840 (1971-06-01), Rolsten et al.
patent: D258590 (1981-03-01), Shaw
patent: D309174 (1990-07-01), Furusawa
patent: 639552 (1899-12-01), Gabel
patent: 1330266 (1920-02-01), Holstein

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