Title: Circular butterfly

Abstract: A circular butterfly is a kind of throwing implement, which comprises a circular saucer having a number of radial holes and grooves, and a round hole at the middle, a number of rotatable leaves, a rotatable adjusting disk and a circular plate fixed on the said adjusting disk.

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Inventors: Ueng, Ming-Shean

Application Number: 810035
Filing Date: 1977-06-27
Publication_date: 1980-01-29
Assignee:
Primary Class(es): 473/588 244/17.25, 244/48
Other Classes:
US Patent Ref:

D241565	Sep, 1976	Molenaar	273/106.
2822176	Feb, 1958	Robes	273/106.
3828466	Aug, 1974	Geiger	273/106.
3955817	May, 1976	Davis	273/106.
4065873	Jan, 1978	Jones	273/106.

Other Refs: 22464692306132379907

Mar, 1973	DE
Aug, 1974	DE
Sep, 1907	FR

Other References: The Washington Post 4-9-1950, p. 2, of the Parade Section.
The Times Herald, 1-11-1954.