Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1987-10-20
1990-11-13
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
Patent
active
D03120511
REFERENCES:
patent: D196674 (1963-10-01), Rapp et al.
patent: D242331 (1976-11-01), Kunz et al.
patent: D248928 (1978-08-01), Grunstad
patent: D250883 (1979-01-01), Hubson
patent: D296307 (1988-06-01), Knothe et al.
patent: 4632199 (1986-12-01), Ober et al.
patent: 4798250 (1989-01-01), Knothe et al.
Cole-Palmer, Balances: Laboratory Balances, .COPYRGT.1987 p. 44,45,47,48.
Gottl. Haigis GmbH Sales Brochure.
Davis Antoine D.
Holtje Nelson C.
Mettler Instrumente AG
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