최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0908439 (1978-05-22) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 15 인용 특허 : 12 |
A measuring device for measuring the value represented by an indication on a graph, chart, map, or the like, having a calibration scale. The measuring device can accommodate any calibration scale over a wide range. The measuring device includes a first member, having a first reference indication on
A measuring device comprising: a first member having a first reference indication; a second member having a second reference indication and movable with respect to said first member between a closed position, in which said first and second reference indications are adjacent each other, and an extend
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