CA688069A - Seismometer - Google Patents

Seismometer

Info

Publication number
CA688069A
CA688069A CA688069A CA688069DA CA688069A CA 688069 A CA688069 A CA 688069A CA 688069 A CA688069 A CA 688069A CA 688069D A CA688069D A CA 688069DA CA 688069 A CA688069 A CA 688069A
Authority
CA
Canada
Prior art keywords
seismometer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA688069A
Inventor
T. Elskamp Petrus
G. Hagedoorn Johan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell USA Inc
Original Assignee
Shell Oil Co
Publication date
Application granted granted Critical
Publication of CA688069A publication Critical patent/CA688069A/en
Expired legal-status Critical Current

Links

CA688069A Seismometer Expired CA688069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA688069T

Publications (1)

Publication Number Publication Date
CA688069A true CA688069A (en) 1964-06-02

Family

ID=35990682

Family Applications (1)

Application Number Title Priority Date Filing Date
CA688069A Expired CA688069A (en) Seismometer

Country Status (1)

Country Link
CA (1) CA688069A (en)

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