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Wheeled compass
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Patent number 9,073,381
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Issue date Jul 7, 2015
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King Saud University
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Mohamed Yossry Elmassry
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Caliper
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Patent number 8,006,405
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Issue date Aug 30, 2011
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Bobby Hu
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G01 - MEASURING TESTING
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Caliper
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Patent number 7,509,754
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Issue date Mar 31, 2009
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Bobby Hu
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G01 - MEASURING TESTING
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Electrocardiogram compass
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Patent number 6,694,636
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Issue date Feb 24, 2004
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Kevin Maher
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Digital compass
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Patent number 5,875,561
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Issue date Mar 2, 1999
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Chi Chung Chen
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G01 - MEASURING TESTING
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Seal splitter gage
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Patent number 5,515,616
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Issue date May 14, 1996
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JM Clipper Corporation
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Robert A. Merkin
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G01 - MEASURING TESTING
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Caliper apparatus
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Patent number 5,203,091
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Issue date Apr 20, 1993
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Salah M. Al-Farsy
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G01 - MEASURING TESTING
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Pivoted-arm caliper
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Patent number 5,154,003
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Issue date Oct 13, 1992
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Curtis R. Moore
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G01 - MEASURING TESTING
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Safety compass
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Patent number 5,090,127
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Issue date Feb 25, 1992
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Creative Works, L.P.
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Bruce Shapiro
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Prosthetic gauge
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Patent number 5,070,623
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Issue date Dec 10, 1991
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Zimmer, Inc.
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Milton Barnes
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Pair of measuring compasses
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Patent number 4,843,719
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Issue date Jul 4, 1989
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Kiefer, Klaus, Jurgen and Straten, Gunter
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Gunter Straten
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Caliper
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Patent number 4,635,370
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Issue date Jan 13, 1987
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Bud K. Beaver
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G01 - MEASURING TESTING
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Measuring device
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Patent number 4,468,860
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Issue date Sep 4, 1984
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Jeffrey L. Rodengen
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G01 - MEASURING TESTING
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Surgical caliper
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Patent number 4,226,025
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Issue date Oct 7, 1980
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Michael R. Wheeler
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Skin fold caliper
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Patent number 4,127,112
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Issue date Nov 28, 1978
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American Hospital Supply Corp.
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Hugh P. Sherlock
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3665611
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Patent number 3,665,611
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Issue date May 30, 1972
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G01 - MEASURING TESTING
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3660905
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Patent number 3,660,905
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Issue date May 9, 1972
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G01 - MEASURING TESTING
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3507046
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Patent number 3,507,046
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Issue date Apr 21, 1970
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G01 - MEASURING TESTING
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3407504
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Patent number 3,407,504
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Issue date Oct 29, 1968
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G01 - MEASURING TESTING