Combined vacuum pump and control valve therefor

Details Combined vacuum pump and control valve therefor Combined vacuum pump and control valve therefor

1981-10-19

1983-11-29

Burke, Wallace R.

Machines not elsewhere specified

Pump or compressor

D1502

Patent

active

D02715872

REFERENCES:
patent: D215883 (1969-11-01), Svenson
patent: 3759560 (1973-09-01), Yoda et al.
patent: 3785691 (1974-01-01), Sperry

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