Laser level

Details Laser level Laser level

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

D04184327

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 RL-VH rotating laser, Topcon, on sale before Aug. 13, 1998.

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