Method of making an electrical unit
United States Patent 3222173

Inventors:
Belko Jr., William R.
Vandermark, Roger C.
Publication Date:
12/07/1965
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Assignee:
VITRAMON INC
Primary Class:
430/198
Other Classes:
430/312, 29/832, 430/269, 430/315, 430/319, 216/6, 430/156
International Classes:
H01C17/00; H01G13/00; H05K3/02
US Patent References:
2830899Method for producing a printing plate
2854336Method of forming a two-level photoengraved embossing plate or mold
2977228Method of making three dimensional models
3020156Method of coating metal on dielectric material
3031302Process of producing printing plates
3079254Photographic fabrication of semiconductor devices
3080232Method for photographically producing electrical conductor patterns inside a hollow object
3081210Method for fabricating small elements of thin magnetic film
3138503Printed circuit manufacturing process
3159486Method of making electrical conductors