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Patents for Samuel Duncan Black
Patents 1 - 10 of 10
First set of recordsLast set of records
1,229,401Jun. 12, 1917S.D. Black, A.G. DeckerDrill gearinghandheld power tools
1,245,860Nov. 06, 1917S.D. Black, A.G. DeckerElectrically-driven toolhandheld power tools
D57,576Apr. 26, 1921S.D. Black, A.G. DeckerDesign for a portable electric toolhandheld drills
D57,812May 10, 1921S.D. Black, A.G. DeckerDesign for a housing for electric air compressors and motorsair compressors
1,463,305Jul. 31, 1923S.D. Black, A.G. DeckerPumping apparatus
1,492,095Apr. 29, 1924S.D. Black, A.G. DeckerElectrically-driven toolhandheld power tools
1,548,020Aug. 04, 1925S.D. Black, A.G. DeckerReversing means for electric toolshandheld power tools
1,574,020Feb. 23, 1926S.D. Black, A.G. DeckerElectric-cord protectorhandheld drills
1,699,870Jan. 22, 1929S.D. Black, A.G. DeckerPortable toolhandheld power tools
1,702,245Feb. 19, 1929S.D. Black, A.G. DeckerElectrical connection for portable electric toolshandheld power tools
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