Rotary switch knob

Details Rotary switch knob Rotary switch knob

1986-03-10

1988-09-20

Burke, Wallace R.

Equipment for production, distribution, or transformation of ene

Energy conversion or transformation

Patent

active

D02977265

REFERENCES:
patent: D111047 (1938-08-01), Lavallee
patent: 3324267 (1967-06-01), Edelson
patent: 4334492 (1982-06-01), Klingler
Cynamid, 6-8-64, "Beetle Knob" no page No.
Home Appliance Builder, Jun. 1961, "The Century Design Knob", p. 38.

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