Watthour meter

Details Watthour meter Watthour meter

1999-02-24

2000-09-05

Davis, Antoine Duval

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Volume, flow or rate

D10 99, 1004

Patent

active

D04304993

REFERENCES:
patent: D278133 (1985-03-01), Johnson
patent: D366434 (1996-01-01), Brown, III et al.
patent: 5315236 (1994-05-01), Lee
patent: 6064742 (2000-05-01), Landelius

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