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Patents Granted on 1977-03-??
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
D243,506Mar. 01, 1977A.J. HessElephant Brand Skateboard Wrenchcombination tools
4,010,943Mar. 08, 1977S.E. EftPower drill support and guide apparatusdrill and tap guides
CA-1,007,257Mar. 22, 1977J.J. FatulaSelf-centering rolls
4,013,152Mar. 22, 1977C.O. Jones, Jr.Mechanical clutch for cyclic machinesmetalworking machine mechanisms
4,013,176Mar. 22, 1977J.J. Schachte, E.R. LohneisUnitary Work Changer for Machining Centerworkpiece changers and storage mechanisms
CA-1,007,619Mar. 29, 1977D.H. GoeringRotary fluid enginehot air engines
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