| http://www.w3.org/ns/prov#value | - Patent US4733461 - Method of stacking printed circuit boards - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsA method for stacking, on a mother board in high density, N printed circuit boards which are formed, respectively, in the same size and shape of a regular N-sided polygon, where N is an integer not less than three.
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