H - Electricity – 01 – K
Patent
H - Electricity
01
K
313/20, 339/33
H01K 1/46 (2006.01) H01R 33/09 (2006.01) H01R 13/64 (2006.01)
Patent
CA 1306493
Abstract of the Disclosure A single filament type wedge-base lamp is formed with projections on opposite sides at opposite end portions of a flat base of the lamp, and the corresponding socket has a recess with clearance grooves corresponding in position to the projections. The socket for a double filament type wedge-base lamp has a recess without clearance grooves so that the single filament type wedge-base lamp is prevented from erroneously inserted into the double-filament type lamp socket. If a double filament type lamp is inserted into the socket for a single filament type lamp, either one of the two filaments will operate without posing no problem.
576292
Murakami Yukio
Toyoshima Akira
Gowling Lafleur Henderson Llp
Stanley Electric Co. Ltd.
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