Patent search ap:("STEVENS ROBERT LIVINGSTON") AND inv:"STEVENS ROBERT LIVINGSTON" Page 1

1.

发明授权
Combination of means for surveying and navigation. 失效
Title translation: 组合检测和导航手段。

公开(公告)号：US876604A

公开(公告)日：1908-01-14

申请号：US1907358105

申请日：1907-02-18

Applicant: STEVENS ROBERT LIVINGSTON

Inventor： STEVENS ROBERT LIVINGSTON

CPC classification number: G01C21/02 , Y10T74/12

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