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7557933 |
Measuring probe, sample surface measuring apparatus and sample surface measuring method
A measurement probe 1 for measuring a surface of sample S comprises a base section 10 , a head section 30 having a probe tip 31 , and a support structure section 15 which supports the head...
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6823603 |
Device for enabling a single user to easily and accurately mark right and oblique angles and method for employing same
The present invention is directed to an apparatus and method for marking an angles relative to a baseline, the apparatus comprising two elongate arms, one arm having a length greater than that of...
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6647637 |
Use of magneto-resistive sensors for borehole logging
A downhole caliper instrument utilizing a linear or arcuate magneto resistive sensor to determine the position of one or more caliper arms which extend from a carrier tool to touch the surface of a...
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5630278 |
Circle compass
A device for forming circles that includes a first member which is rotatably attached to a second member. The first and second members include a first peripheral section and a second peripheral...
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5515616 |
Seal splitter gage
A gage for splitting annular seals by establishing two points on a seal's outer edge for cutting lines, and planes through which the cuts should extend. The gage includes two pivotally connected...
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5115571 |
Reversible pen-caliper device and method
A pen-caliper device includes a pen assembly having a pen barrel, a ballpoint ink cartridge in the barrel, and a mechanism engaging the ink cartridge and the barrel for advancing the ink cartridge...
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4377911 |
Contour measuring instrument
A measuring instrument for measuring the contour of the outer surface of a workpiece. This measuring instrument is of such an arrangement that the tip end of a stylus solidly secured at one end of...
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4302881 |
Calibrated conduit caliper and method
A well conduit caliper tool which simultaneously measures the remaining wall thickness of a well conduit in situ and the minimum inside diameter of such conduit. A caliper feeler arm element which...
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4163322 |
Compass with fine adjustment
A compass is provided which includes a fine adjustment mechanism comprising lateral spreader bars attached to the respective compass legs and a central drive wheel meshing with the spreader bars....
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3797119 |
DRAWING INSTRUMENT
A drawing compass-like instrument for producing spiral-like curves in which a worm is positioned on one leg of the instrument and a worm gear is positioned on the other leg of the instrument, the...
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3247597 |
Drafting compass
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3008239 |
Constant pressure calipers
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2928180 |
Button locking dividers compass
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0936024 |
Title is not available
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