Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1998-08-13
2000-01-04
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
1004
Patent
active
D04184343
REFERENCES:
patent: D348227 (1994-06-01), Nielsen et al.
patent: 5400514 (1995-03-01), Imbrie et al.
patent: 5907907 (1999-06-01), Ohtomo et al.
Pro Shot .TM., Model L1-AS, on sale before Aug. 13, 1998.
Marksman RL-50, Topcon Laser Products Division, on sale before Aug. 13, 1998.
AutoLaser 500 Electronic Level System (AEL-500), David White, Inc., on sale before Aug. 13, 1998.
LB-4 Dual Grade Laser Beacon, Laser Alignment, Inc., on sale before Aug. 13, 1998.
Model Laser RL-VH rotating laser, Topcon, on sale before Aug. 13, 1998.
Davis Antoine Duval
Zircon Corporation
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