Patent search ap:("WHITEHALL ELECTRONICS CORP OF") AND inv:"PEARSON RAYMOND H" Page 1

1.

发明授权
Means for variably controlling the buoyancy of a seismic detection streamer 失效
Title translation: 用于可变地控制地震检测拖缆的浮力的装置

公开(公告)号：US3371739A

公开(公告)日：1968-03-05

申请号：US55209866

申请日：1966-05-23

Applicant: WHITEHALL ELECTRONICS CORP OF

Inventor： PEARSON RAYMOND H

IPC: G01V1/38

CPC classification number: G01V1/3826

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