Teaching scale

Details Teaching scale Teaching scale

1997-09-29

1998-11-10

Davis, Antoine Duval

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Weight, force or density

1004

Patent

active

D04008138

REFERENCES:
patent: D379315 (1997-05-01), Woldenberg et al.
patent: 3527311 (1970-09-01), Ohaus et al.
patent: 4042050 (1977-08-01), Myers

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