Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1997-01-16
1998-05-12
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D10 62, 1004
Patent
active
D03942228
REFERENCES:
patent: D305739 (1990-01-01), Raitamaa
patent: D349066 (1994-07-01), Su
patent: 4438568 (1984-03-01), Kramer et al.
patent: 4899453 (1990-02-01), Bhat et al.
patent: 5313712 (1994-05-01), Curameng et al.
Brochure entitled "The Suunto Twin. Two Precision Instruments in One" (First Page), Combinations of Clinometer and Hand-Bearing Compass:The Twin (Second Page), Suunto Oy, 1993.
Metsa-Ketela Heikki
Vainio Erkki
Davis Antoine Duval
Suunto Oy
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