KR870010793U - 전기가 없는 곳에서도 실험할 수 있는 진공속의 낙하운동장치 - Google Patents

전기가 없는 곳에서도 실험할 수 있는 진공속의 낙하운동장치

Info

Publication number
KR870010793U
KR870010793U KR2019850017958U KR850017958U KR870010793U KR 870010793 U KR870010793 U KR 870010793U KR 2019850017958 U KR2019850017958 U KR 2019850017958U KR 850017958 U KR850017958 U KR 850017958U KR 870010793 U KR870010793 U KR 870010793U
Authority
KR
South Korea
Prior art keywords
electricity
absence
vacuum
motion device
drop motion
Prior art date
Application number
KR2019850017958U
Other languages
English (en)
Other versions
KR890001655Y1 (ko
Inventor
박경호
김호영
Original Assignee
박경호
김호영
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 박경호, 김호영 filed Critical 박경호
Priority to KR2019850017958U priority Critical patent/KR890001655Y1/ko
Publication of KR870010793U publication Critical patent/KR870010793U/ko
Application granted granted Critical
Publication of KR890001655Y1 publication Critical patent/KR890001655Y1/ko

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
KR2019850017958U 1985-12-30 1985-12-30 전기가 없는 곳에서도 실험할 수 있는 진공속의 낙하운동장치 KR890001655Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850017958U KR890001655Y1 (ko) 1985-12-30 1985-12-30 전기가 없는 곳에서도 실험할 수 있는 진공속의 낙하운동장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850017958U KR890001655Y1 (ko) 1985-12-30 1985-12-30 전기가 없는 곳에서도 실험할 수 있는 진공속의 낙하운동장치

Publications (2)

Publication Number Publication Date
KR870010793U true KR870010793U (ko) 1987-07-13
KR890001655Y1 KR890001655Y1 (ko) 1989-04-07

Family

ID=19247662

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850017958U KR890001655Y1 (ko) 1985-12-30 1985-12-30 전기가 없는 곳에서도 실험할 수 있는 진공속의 낙하운동장치

Country Status (1)

Country Link
KR (1) KR890001655Y1 (ko)

Also Published As

Publication number Publication date
KR890001655Y1 (ko) 1989-04-07

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A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee