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US1535312A
(en)
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|
Waterproof covering for cameras
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SU84494A1
(2)
|
|
|
|
JP2022063311A
(ja)
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|
下水管路の内面腐食個所の推定方法及び腐食個所検出装置
|
|
US3588908A
(en)
|
|
Borehole instrument
|
|
TWI392786B
(zh)
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Monitoring System of Bridge Pile Bed Height
|
|
JPH06194731A
(ja)
|
|
水中現場撮影カメラのための装置
|
|
US2812697A
(en)
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|
Stepped progression borehole camera apparatus
|
|
JPS56128930A
(en)
|
|
Camera with telephotographic device
|
|
JP2020111875A
(ja)
|
|
地質調査に用いる透明管の開口端を塞ぐジョイント部材
|
|
US3621767A
(en)
|
|
Pipe camera for photographing the interior of a pipe or the like
|
|
JPS6240516B2
(2)
|
|
|
|
SU251510A1
(ru)
|
|
Скважинная фотокамера
|
|
KR100272428B1
(ko)
|
|
수중 촬영기의 보조기구
|
|
US1331627A
(en)
|
|
Subterranean camera
|
|
KR102624851B1
(ko)
|
|
수중 영상 촬영 장치
|
|
US1960038A
(en)
|
|
Well surveying device
|
|
US1657795A
(en)
|
|
Motion-picture camera
|
|
US1925223A
(en)
|
|
Method and apparatus for determining the inclination of alpha well
|
|
FR2374660A1
(fr)
|
|
Appareil de prise de vues sous-marines pour grandes profondeurs
|
|
US2940370A
(en)
|
|
Bottom hole camera
|
|
SU972067A1
(ru)
|
|
Устройство контрол стенок скважины
|
|
US3557674A
(en)
|
|
Camera device for internal inspection of pipe
|
|
JP2855550B2
(ja)
|
|
カメラ用連動装置
|
|
US3040566A
(en)
|
|
Apparatus for locating leaks in well casings
|
|
US1682873A
(en)
|
|
Camera
|