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3401549
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Information
Patent Grant
3401549
References
Source
Patent Number
3,401,549
Date Filed
Not available
Date Issued
Tuesday, September 17, 1968
56 years ago
CPC
G01C19/44 - for indicating the vertical
G01C25/00 - Manufacturing, calibrating, cleaning, or repairing instruments and devices referred to in the preceding groups
B64D2700/62219 - Electric safety devices
US Classifications
073 - Measuring and testing
033 - Geometrical instruments
244 - Aeronautics and astronautics
318 - Electricity: motive power systems
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