Geometrical instruments
Patent
1977-06-03
1978-07-11
Lake, Roy
Geometrical instruments
362123, F21P 102
Patent
active
040998240
ABSTRACT:
The mechanically adjustable electric outlet device comprises a plurality of female receptacle plugs connected in parallel circuit and a semi-stiff, spring-metal wire which is resiliently formed into a circle of variable diameter so as to mount at the top of Christmas trees of various diameter trunks. One end of the electric outlet device terminates in a conventional male plug which energizes the device by connecting to a power source while the other end of the device terminates in a fastener part which may fasten to second fastener means of any of the female receptacle plugs to provide circular mounting around Christmas tree trunks of various diameters.
REFERENCES:
patent: 1974472 (1934-09-01), Seghers
patent: 2468773 (1949-05-01), Musinski
patent: 2474356 (1949-06-01), Harris
patent: 3096943 (1963-07-01), Forrer
patent: 3770951 (1973-11-01), Corelli
Desmond E. F.
Horwitz Harold C.
Lake Roy
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