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Portable staircase
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Patent number 11,591,854
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Issue date Feb 28, 2023
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MA Staircase LLC, Paracorp Incorporated
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Torsten Leines
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2310119
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Patent number 2,310,119
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Issue date Feb 2, 1943
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2229987
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Patent number 2,229,987
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Issue date Jan 28, 1941
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2219133
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Patent number 2,219,133
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Issue date Oct 22, 1940
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2116470
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Patent number 2,116,470
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Issue date May 3, 1938
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2085921
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Patent number 2,085,921
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Issue date Jul 6, 1937
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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1926697
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Patent number 1,926,697
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Issue date Sep 12, 1933
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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1924751
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Patent number 1,924,751
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Issue date Aug 29, 1933
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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1615128
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Patent number 1,615,128
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Issue date Jan 18, 1927
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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1606601
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Patent number 1,606,601
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Issue date Nov 9, 1926
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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1528448
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Patent number 1,528,448
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Issue date Mar 3, 1925
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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1143560
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Patent number 1,143,560
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Issue date Jun 15, 1915
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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1035570
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Patent number 1,035,570
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Issue date Aug 13, 1912
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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692728
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Patent number 692,728
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Issue date Feb 4, 1902
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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580295
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Patent number 580,295
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Issue date Apr 6, 1897
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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345427
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Patent number 345,427
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Issue date Jul 13, 1886
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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333784
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Patent number 333,784
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Issue date Jan 5, 1886
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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318660
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Patent number 318,660
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Issue date May 19, 1885
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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291259
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Patent number 291,259
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Issue date Jan 1, 1884
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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262799
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Patent number 262,799
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Issue date Aug 15, 1882
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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179262
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Patent number 179,262
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Issue date Jun 27, 1876
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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159022
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Patent number 159,022
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Issue date Jan 26, 1875
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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155345
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Patent number 155,345
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Issue date Sep 22, 1874
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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143182
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Patent number 143,182
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Issue date Sep 23, 1873
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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142349
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Patent number 142,349
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Issue date Sep 2, 1873
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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107077
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Patent number 107,077
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Issue date Sep 6, 1870
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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90316
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Patent number 90,316
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Issue date May 18, 1869
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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32778
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Patent number 32,778
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Issue date Jul 9, 1861
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS