Peak flow meter

Details Peak flow meter Peak flow meter

1995-03-31

1996-02-27

Davis, Antoine Duval

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Volume, flow or rate

D10 78, D24166

Patent

active

D03674339

REFERENCES:
patent: D24070 (1895-02-01), La Roche
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patent: 4210155 (1980-07-01), Grimes
patent: 4287775 (1981-09-01), Hutton
patent: 4292853 (1981-10-01), Williams et al.
patent: 4294262 (1981-10-01), Williams et al.
patent: 4420229 (1983-12-01), Lewis
patent: 4638812 (1987-01-01), Hakinen
patent: 5012812 (1991-05-01), Stockwell
patent: 5253651 (1993-10-01), Stockwell et al.

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