The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1976
Filed:
Jul. 09, 1973
Applicant:
Inventor:
Edward James Bassett, Orpington, EN;
Assignee:
Seismograph Service Corporation, Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
340 / ; 340 / ;
Abstract
Accurate timing at distant points is obtained by timing units which will operate independently at these points without the transmission of time signals between the units. Each unit includes means for producing time pulses at time intervals which are the same in the different units and means are provided for synchronizing the units when one is brought to and connected directly with the other.