Birch, Stewart, Kolasch & Birch
Circuit board connection
 A method for connecting two circuit boards characterized in that by using rubber connectors, each having an open part for receiving circuit boards, an edge of a first circuit board requiring connection inserted into the open part of the rubber connector, followed by pressing a second rubber connector against the circuit board to complete connection of the two circuit boards. 
Sharp Kabushiki Kaisha
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inventional additional additional additional inventional
Keiji Shigeri Koki
Nakayama Yamaguchi Taniguchi