Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1983-12-27
1986-04-22
Zarfas, Louis S.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D10 66, D12 6
Patent
active
D02834944
REFERENCES:
patent: D203873 (1966-02-01), Kielhorn
patent: D235527 (1975-06-01), Dransfield
patent: D236593 (1975-09-01), Katayama
patent: D259406 (1981-06-01), Jacobson
patent: 4490919 (1985-01-01), Feist et al.
Laser Instruments for Engineering Construction, from Spectra-Physics.
Rhea Robert K.
Zarfas Louis S,.
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