Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Plural linear-movement motors
Patent
1979-02-26
1981-08-25
Duggan, Donovan F.
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Plural linear-movement motors
318115, 318135, 310 12, H02K 4100
Patent
active
042861977
ABSTRACT:
A positioning device with two coordinates, for the moving of two components relative to each other. The positioning device with two coordinates serves for the exact positioning of a tool or workpiece, preferably of semi-conductor discs, for the purpose of checking or fabricating in the course of the manufacturing process.
REFERENCES:
patent: 3851196 (1974-11-01), Hindi
patent: 3881139 (1975-04-01), Inaba et al.
Beyer Helmut
Eberhard Riessland
Kossman Erich
Duggan Donovan F.
Striker Michael J.
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