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Patent:US2243730


Patent:US 2243730
Title:Apparatus for analysis of seismographic records
Date:27.05.1941
Place:Beaumont, TX
Country:USA
Person:Lacoste G. Ellis
Company:Sun Oil Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US2243730 (espacenet),  US2243730 (uspto)


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