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Pen holding devices
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Patent number 11,320,916
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Issue date May 3, 2022
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Hewlett-Packard Development Company, L.P.
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Chan Woo Park
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G06 - COMPUTING CALCULATING COUNTING
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2779313
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Patent number 2,779,313
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Issue date Jan 29, 1957
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2419285
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Patent number 2,419,285
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Issue date Apr 22, 1947
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2160661
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Patent number 2,160,661
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Issue date May 30, 1939
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1975512
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Patent number 1,975,512
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Issue date Oct 2, 1934
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1876197
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Patent number 1,876,197
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Issue date Sep 6, 1932
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1862988
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Patent number 1,862,988
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Issue date Jun 14, 1932
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1832170
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Patent number 1,832,170
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Issue date Nov 17, 1931
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1806630
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Patent number 1,806,630
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Issue date May 26, 1931
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1596920
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Patent number 1,596,920
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Issue date Aug 24, 1926
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1585029
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Patent number 1,585,029
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Issue date May 18, 1926
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1571252
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Patent number 1,571,252
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Issue date Feb 2, 1926
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1379057
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Patent number 1,379,057
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Issue date May 24, 1921
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1347527
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Patent number 1,347,527
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Issue date Jul 27, 1920
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1312184
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Patent number 1,312,184
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Issue date Aug 5, 1919
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1297877
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Patent number 1,297,877
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Issue date Mar 18, 1919
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1292872
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Patent number 1,292,872
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Issue date Jan 28, 1919
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1227009
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Patent number 1,227,009
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Issue date May 22, 1917
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1008074
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Patent number 1,008,074
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Issue date Nov 7, 1911
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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953917
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Patent number 953,917
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Issue date Apr 5, 1910
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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947091
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Patent number 947,091
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Issue date Jan 18, 1910
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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904664
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Patent number 904,664
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Issue date Nov 24, 1908
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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879624
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Patent number 879,624
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Issue date Feb 18, 1908
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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873983
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Patent number 873,983
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Issue date Dec 17, 1907
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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740508
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Patent number 740,508
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Issue date Oct 6, 1903
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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691721
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Patent number 691,721
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Issue date Jan 21, 1902
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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626925
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Patent number 626,925
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Issue date Jun 13, 1899
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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608283
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Patent number 608,283
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Issue date Aug 2, 1898
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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557425
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Patent number 557,425
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Issue date Mar 31, 1896
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES